EP2493882A1 - Co-cristal de 4-{[(6-chloropyrid-3-yl)méthyl](2,2-difluoro-éthyl)amino}furan-2(5h)-one contenant de l'acide benzoïque et son utilisation comme pesticide - Google Patents

Co-cristal de 4-{[(6-chloropyrid-3-yl)méthyl](2,2-difluoro-éthyl)amino}furan-2(5h)-one contenant de l'acide benzoïque et son utilisation comme pesticide

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Publication number
EP2493882A1
EP2493882A1 EP10768941A EP10768941A EP2493882A1 EP 2493882 A1 EP2493882 A1 EP 2493882A1 EP 10768941 A EP10768941 A EP 10768941A EP 10768941 A EP10768941 A EP 10768941A EP 2493882 A1 EP2493882 A1 EP 2493882A1
Authority
EP
European Patent Office
Prior art keywords
methyl
furan
difluoroethyl
amino
chloropyrid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10768941A
Other languages
German (de)
English (en)
Inventor
Martin Weiss
Dirk Storch
Wolfgang Wirth
Britta Olenik
Hans-Christoph WEIß
Ulrich Schwiedop
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer Intellectual Property GmbH
Original Assignee
Bayer Technology Services GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer Technology Services GmbH filed Critical Bayer Technology Services GmbH
Priority to EP10768941A priority Critical patent/EP2493882A1/fr
Publication of EP2493882A1 publication Critical patent/EP2493882A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
    • C07D405/12—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
    • A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings

Definitions

  • the invention relates to novel C o crystals of 4 - ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one with benzoic acid, and process for their preparation and their use.
  • the compound 4 - [[(6-chloropyridin-3-yl) methyl] (2,2-difluoroethyl) amino] furan-2 (5H) -one and methods for the preparation of this compound are known. It is also known that this compound has insecticidal or acaricidal activity.
  • WO 2007/115644 A1 describes, for the first time, the preparation of this compound and its use for controlling arthropods, in particular insects. The preparation of the compound was further described in WO 2009/036899 Al. It has now been found that the compound prepared by the known method can not be applied in an economically relevant form.
  • solids can be present in amorphous and crystalline form as well as polymorphs, hydrates and solvates, which in particular can significantly influence physical properties such as solubility, bioavailability upon ingestion into an organism, hygroscopicity and melting point. These physical properties may limit or extend the utility of the substance in one way or another.
  • thermodynamically stable phase whereas in other material systems one or more transition points exist in which the stability ratio is reversed. It is not possible to predict the stability ratio and in particular the existence and location of above-mentioned transition points.
  • co-crystals Another crystalline modification of a solid is so-called co-crystals. These include the solid with so-called co-formers. Again, advantageous physical properties over the original solid can be obtained.
  • WO 2008/013823 A2 describes a process for the preparation of a carboxyl radical comprising (2R-trans) -6-chloro-5 [[4 - [(4-fluorophenyl) methyl] -2,5-dimethyl-1 - piperazinyl] carbonyl] -N, N, 1-trimethyl-alpha-oxo-1H-indole-3-acetamide or its hydrochloride or its free base and a co-former, arginine, urea, salicylic acid, 4-amino-salicylic acid and benzoic acid.
  • the disclosed co-crystals may also contain more than one co-former.
  • the stoichiometric ratio in the crystalline solid and co-former to each other may be 1: 1, 2: 1 or 1: 2. It is further described that the co-crystals found have advantageous solubility, dissolution rate, bioavailability, stability and processability.
  • the process disclosed in WO 2008/013823 A2 for the preparation of the co-crystals may be carried out by milling the crystalline solid together with the at least one co-former or co-melting of the crystalline solid with the at least one co-former, or alternatively by co-dissolving crystalline solid may be characterized with the at least one co-former and subsequent crystallization.
  • the crystalline substance and the at least one co-former may be present in a stoichiometric ratio of 1: 1 to 1: 100 to each other.
  • the aforementioned milling of the crystalline solid together with the at least one co-former may also be carried out together with a small amount of solvent.
  • thermogravimetric analysis TGA
  • powder X-ray diffractometric measurements p-XRD
  • DSC differential calorimetry
  • WO 2008/013823 A2 does not disclose a co-crystal comprising 4- ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one.
  • WO 2008/013823 A2 discloses that it is generally possible that co-crystals of a crystalline solid may be distinguished by an improvement in the abovementioned physical properties, this is in connection with the processes described in WO 2008/013823 A2 disclosed co-crystals are not disclosed. It also seems doubtful whether the disclosed co-crystals actually exist. Only hints are disclosed that the co-crystals could exist.
  • a final proof by the cultivation of a single crystal and its measurement is not revealed. The revealed Powder X-ray diffractometric measurements can also convey misinformation by diffraction and refraction at the particle surfaces.
  • US 2007/0212683 A1 discloses a co-crystal of VX-950, a hepatitis C virus inhibitor with, inter alia, oxalic acid.
  • the resulting co-crystals can have advantageous physical properties. Although a stability measurement of a suspension of the co-crystal is disclosed, a comparative disclosure between the pure crystalline solid and the co-crystals can not be found. In addition, the existence of the disclosed co-crystals may also be doubtful in the disclosure of US 2007/0212683 Al, since in this case too only powder X-ray diffractometric measurements were carried out with the error sources resulting from them.
  • WO 2008/096005 AI describes thiophanate-methyl as a co-former for agrochemically active substances which must comprise at least one functional group which acts as a hydrogen acceptor of a hydrogen bond.
  • co-crystal means a solid substance at room temperature (23 ° C) and ambient pressure (1013 hPa) containing in its crystal lattice at least two hydrogen bonds with interacting pure substances, wherein all pure substances present in the crystal lattice are also solids at room temperature (23 ° C) and ambient pressure (1013 hPa).
  • co-former denotes a pure substance which is not 4- ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one and which together with 4- ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one forms an adduct in at least a stoichiometric ratio that has only one melting point.
  • the co-crystal according to the invention usually has a higher melting point than the pure substance 4- ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one.
  • melting point is understood as the temperature at which the substance has the highest heat output when measuring the melting point in a differential calorimetry (DSC). Melting of the substance begins earlier than at the temperature at which the aforementioned highest heat output is to be measured and usually ends at higher temperatures, which is why the below-mentioned melting points according to other definitions of the melting point quite well at lower or higher temperatures can.
  • DSC differential calorimetry
  • the increased melting point of the co-crystal according to the invention is particularly advantageous because the Co crystal, in contrast to the pure substance 4- ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H ) -one can be treated at higher temperatures without melting.
  • Such treatment at higher temperatures may be drying in the course of producing the co-crystal, or else storage at elevated temperatures.
  • the co-crystal according to the invention exhibits improved storage stability since, when stored at elevated temperatures, it does not tend to melt on its surface and thus agglomerate or adhere to the wall of the transport container in which it is transported.
  • the co-crystal according to the invention usually has a higher solubility in water than the pure substance 4 ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one.
  • the Co crystal consists essentially of 4- ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) - on and benzoic acid as a co-former.
  • the melting point of the co-crystal according to the invention is usually in the range of 90 ° C to 110 ° C, co-crystals according to the invention having a melting point of about 105 ° C are preferred.
  • the aforementioned melting point can be determined in a well-known manner by differential calorimetry (DSC).
  • the stoichiometric ratio of 4- ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one to benzoic acid in the first preferred development is 1: 1.
  • the co-crystal according to the first preferred embodiment of the present invention is further characterized as having a monoclinic morphology.
  • the co-crystal usually has the space group P2 (I) / c according to Cambridge structure database (FL, Allen, Acta Cryst.B58, (2002) 380-388).
  • a further subject of the present invention is a first process for preparing a cocrystal comprising 4- ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one, characterized in that it comprises at least the steps
  • step a) of the process according to the invention can be carried out by either 4- ⁇ [(6-chloro-3-yl-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one vorrog elegant and Benzoic acid is added, or vice versa.
  • the 4- ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one is preferably initially introduced and benzoic acid is added while weighing.
  • the mixture A obtained according to step a) of the process according to the invention can be 4- ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one and benzoic acid in any stoichiometric amount Conditions included.
  • the mixture A preferably contains 4- ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one in a stoichiometric ratio of 1: 1 to benzoic acid.
  • step b) the mixing according to step b) is carried out.
  • the solvent used according to step b) of the process according to the invention may be any suitable solvent which is capable of at least one of the substances benzoic acid and / or 4- ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-) difluoroethyl) amino ⁇ furan-2 (5H) -one at a concentration of at least 0.01 g / l.
  • suitable solvents are in particular acetone, ethyl acetate, ethanol and 2-propanol and mixtures thereof.
  • step b) of the process according to the invention the solvent is added in an amount such that in the resulting mixture A 'the solubility concentration (solubility) of 4- ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl ) amino ⁇ furan-2 (5H) -one and / or benzoic acid is exceeded.
  • the solubility concentration of 4- ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one and benzoic acid is exceeded. This is particularly advantageous because it substantially exposes the solids to solids and only wets the surfaces of the solids with the solvent.
  • Milling of mixture A or mixture A ' may be carried out in any apparatus known to those skilled in the art for grinding solids.
  • Non-exhaustive examples of devices in which such grinding can be carried out are, for example, mortar mills, vibrating mills or ball mills.
  • step c) of the process according to the invention is carried out in vibratory mills or ball mills.
  • the energy introduced into the material to be ground must be sized so as not to result in the unwanted formation of amorphous phases of the solids, but at the same time intensive contacting of the solids in the milling apparatus takes place.
  • suitable parameters with which he can set this energy include, for example, the duration and intensity (for example, the impact pressure of a mortar mill or size and material, as well as the amplitude and frequency in a vibratory mill or rotational speed in a ball mill) of grinding.
  • Such procedures are particularly advantageous because, by limiting the energy input, it is possible to ensure that, with respect to the minimum level of energy, a minimum of intensive contact is made between 4- ⁇ [(6-chloropyrid-3-yl) methyl] (2 , 2-difluoroethyl) amino ⁇ furan-2 (5H) -one is carried out with the co-former benzoic acid, while at the same time avoiding intensive stressing of the substances by limiting it to the top.
  • Such excessive stress on the materials being ground may cause them to be converted to an amorphous state, possibly preventing the formation of a co-crystal or destroying a formed co-crystal.
  • the entire process is usually carried out at room temperature (23 °) and ambient pressure (1013 hPa). However, it may be appropriate to carry out the process and in particular the step c) at lower temperatures in order to tolerate some heating of the materials to be ground can, without the energy entry results in the aforementioned transfer to the amorphous state.
  • a further subject of the present invention is a second process for preparing a co-crystal comprising 4- ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one, characterized in that it comprises at least the steps a) providing a saturated solution (A) of 4 - ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one and / or a saturated solution (B ) of benzoic acid, and
  • the solution (A) can be prepared with a first solvent and the solution (B) can be prepared with a second solvent.
  • the first and second solvents may be independently selected from a list consisting of acetone, ethyl acetate, ethanol, 2-propanol and water or mixtures thereof.
  • the first and second solvents are the same.
  • step a) of the second process according to the invention only one solution (A) or one solution (B) may also be present.
  • benzoic acid is added as a solid to the solution (A) or to the solution (B) in step b).
  • the second process according to the invention is preferably carried out such that in step a) the solutions (A) and (B) are provided and these solutions are mixed with one another without the addition of further solid.
  • Another object of the present invention is the use of co-crystals of 4 - ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one invention with benzoic acid as Co-formers for combating animal pests, in particular insects, arachnids and / or nematodes, which are found in agriculture, in forests, in the protection of stored products and materials and in the hygiene sector.
  • plants are understood as meaning all plants and plant populations, such as desired and undesired wild plants or crop plants (including naturally occurring crop plants).
  • Crop plants can be plants which can be obtained by conventional breeding and optimization methods or by biotechnological and genetic engineering methods or combinations of these methods, including the transgenic plants and including the plant varieties which can or can not be protected by plant breeders' rights.
  • Plant parts are to be understood as meaning all aboveground and underground parts and organs of the plants, such as shoot, leaf, flower and root, examples of which include leaves, needles, stems, stems, flowers, fruiting bodies, fruits and seeds, as well as roots, tubers and rhizomes.
  • the plant parts also include crops and vegetative and generative propagation material, such as cuttings, tubers, rhizomes, offshoots and seeds.
  • the treatment according to the invention of the plants and plant parts with the co-crystals according to the invention is carried out directly or by acting on their environment, habitat or storage space according to the usual treatment methods, e.g. by dipping, spraying, evaporating, atomizing, spreading, brushing, injecting and in propagating material, in particular in seeds, further by single or multilayer coating.
  • plants which can be treated in the context of the above-mentioned use of the co-crystals according to the invention the following may be mentioned: cotton, flax, grapevine, fruits, vegetables, such as Rosaceae sp. (for example, pome fruits such as apple and pear, but also drupes such as apricots, cherries, almonds and peaches and soft fruits such as strawberries), Ribesioidae sp., Juglandaceae sp., Betulaceae sp., Anacardiaceae sp., Fagaceae sp., Moraceae sp., Oleaceae sp., Actinidaceae sp., Lauraceae sp., Musaceae sp.
  • Rosaceae sp. for example, pome fruits such as apple and pear, but also drupes such as apricots, cherries, almonds and peaches and soft fruits such as strawberries
  • Rubiaceae sp. for example, coffee
  • Theaceae sp. Sterculiceae sp.
  • Rutaceae sp. for example, lemons, organs and grapefruit
  • Solanaceae sp. for example tomatoes
  • Liliaceae sp. for example, Asteraceae sp.
  • Umbelliferae sp. for example, Cruciferae sp., Chenopodiaceae sp., Cucurbita ceae sp. (for example cucumber), Alliaceae sp. leek, onion), Papilionaceae sp.
  • Main crops such as Gramineae sp. (for example corn, turf, cereals such as wheat, rye, rice, barley, oats, millet and triticale), Asteraceae sp. (for example sunflower), Brassicaceae sp. (for example, white cabbage, red cabbage, broccoli, cauliflower, Brussels sprouts, pak choi, kohlrabi, radishes and rapeseed, mustard, horseradish and cress), Fabacae sp. (for example, beans, peanuts), Papilionaceae sp. (for example, soybeans), Solanaceae sp. (for example potatoes), Chenopodiaceae sp.
  • Gramineae sp. for example corn, turf, cereals such as wheat, rye, rice, barley, oats, millet and triticale
  • Asteraceae sp. for example sunflower
  • Brassicaceae sp. for example, white cabbage, red cabbage
  • the present invention further provides compositions for controlling animal pests, in particular insects, arachnids and / or nematodes, which are found in agriculture, in forestry, in the protection of stored products and in the hygiene sector, and which comprise the co-product of the invention. Include crystals.
  • the co-crystals of the present invention are generally useful as starting materials for the preparation of any of the compounds 4- ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) formulated agent for control of chick peas, even when the compound is 4- ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one according to the Formulation is no longer present as a co-crystal, but rather in dissolved form.
  • co-crystals according to the invention are suitable for the production of compositions for the treatment of seed.
  • the present invention therefore also relates, in particular, to a method for the protection of seeds, in particular transgenic seed, and germinating plants from the infestation of pests, in which the seed is treated with one of the agents according to the invention.
  • the invention also relates to the use of the agents according to the invention for the treatment of seeds for the protection of the seed and the resulting plant from pests. Furthermore, the invention relates to seed which has been treated with an agent according to the invention for protection against pests.
  • transgenic seed contains at least one heterologous gene which controls the expression of a polypeptide having in particular insecticidal properties.
  • the heterologous genes in transgenic seed can come from microorganisms such as Bacillus, Rhizobium, Pseudomonas, Serratia, Trichoderma, Clavibacter, Glomus or Gliocladium.
  • the present invention is particularly useful for the treatment of transgenic seed containing at least one heterologous gene derived from Bacillus sp. and its gene product Efficacy against European corn borer and / or corn rootworm shows. Most preferably, this is a heterologous gene derived from Bacillus thuringiensis.
  • One of the advantages of the present invention is that, due to the particular systemic nature of the 4- (6-chloropyrid-3-yl) methyl contained in the C o crystals of the present invention, (2,2-difluoroethyl) amino ⁇ furan 2 (5H) -on the treatment of the material with the agents according to the invention not only protects the seed itself, but also the resulting plant after emergence from pests.
  • compositions containing the co-crystals of the invention Preference is given to compositions which contain less than 20% by weight of the co-crystals according to the invention, more preferably less than 15% by weight, very particularly preferably less than 10% by weight, particularly preferably less than 5% by weight, most preferably containing less than 4, 3, 2 or 1% by weight of the co-crystals of the invention in the composition. According to the invention, compositions also comprise the aforementioned agents.
  • the co-crystals according to the invention can be converted into the customary formulations in a known manner, such as suspension concentrates, oil-based suspension concentrates, colloidal concentrates, dispersible concentrates, emulsifiable concentrates (emulsion concentrates), emulsion mordants, suspension mordants, granules, microgranules, suspoemulsions, water-soluble granules, water-soluble concentrates and water-dispersible granules, using suitable auxiliaries and carriers or solvents.
  • suspension concentrates oil-based suspension concentrates, colloidal concentrates, dispersible concentrates, emulsifiable concentrates (emulsion concentrates), emulsion mordants, suspension mordants, granules, microgranules, suspoemulsions, water-soluble granules, water-soluble concentrates and water-dispersible granules, using suitable auxiliaries and carriers or solvents.
  • the active compound 4- ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one in a concentration of about 0.5 to 90 wt. % of the composition containing the co-crystals according to the invention, ie in amounts sufficient to achieve the necessary dosage level.
  • the formulations are prepared, for example, by hiding the co-crystals of the invention with water, solvents and / or carriers, optionally using emulsifying and / or dispersing agents, and / or other excipients, e.g. Penetration aids.
  • suspension concentrates including those used for seed treatment
  • further adjuvants are generally added in addition to the active ingredient and an extender (water, solvent or oil).
  • an extender water, solvent or oil
  • a wetting agent is used to stabilize the suspension in the liquid phase
  • dispersing agents are used for emulsifying the non-aqueous phase are used in solvent or oil-containing suspension concentrates emulsifiers.
  • anti-freeze agents, biocides, thickeners, dyes, spreading agents and / or absorption promoters are incorporated.
  • the co-crystals according to the invention can furthermore be converted into other customary formulations, such as solutions, emulsions, wettable powders, water- and oil-based suspensions, powders, dusts, pastes, soluble powders, soluble granules, scattering granules, suspension-emulsion concentrates, co-crystal impregnated natural products, co-crystal-impregnated synthetic materials, fertilizers and Feinstverkapselitch in polymeric materials.
  • customary formulations such as solutions, emulsions, wettable powders, water- and oil-based suspensions, powders, dusts, pastes, soluble powders, soluble granules, scattering granules, suspension-emulsion concentrates, co-crystal impregnated natural products, co-crystal-impregnated synthetic materials, fertilizers and Feinstverkapselitch in polymeric materials.
  • formulations are prepared in a known manner, e.g. by mixing the co-crystals according to the invention with extenders, ie liquid solvents and / or solid carriers, if appropriate using surface-active agents, ie emulsifiers and / or dispersants and / or foam-forming agents.
  • extenders ie liquid solvents and / or solid carriers
  • surface-active agents ie emulsifiers and / or dispersants and / or foam-forming agents.
  • Excipients which can be used are those which are suitable for imparting special properties to the composition itself and / or preparations derived therefrom (for example spray liquor, seed dressing), such as certain technical properties and / or specific biological properties.
  • Typical auxiliaries are: extenders, solvents and carriers.
  • polar and non-polar organic chemical liquids e.g. from the classes of aromatic and non-aromatic hydrocarbons (such as paraffins, alkylbenzenes, alkylnaphthalenes, chlorobenzenes), alcohols and polyols (which may also be substituted, etherified and / or esterified), ketones (such as acetone, cyclohexanone), Esters (including fats and oils) and (poly) ethers, simple and substituted amines, amides, lactams (such as N-alkylpyrrolidones) and lactones, sulfones and sulfoxides (such as dimethylsulfoxide).
  • aromatic and non-aromatic hydrocarbons such as paraffins, alkylbenzenes, alkylnaphthalenes, chlorobenzenes
  • alcohols and polyols which may also be substituted, etherified and / or esterified
  • ketones such as
  • Suitable liquid solvents are essentially: aromatics, such as xylene, toluene, or alkylnaphthalenes, chlorinated aromatics and chlorinated aliphatic hydrocarbons, such as chlorobenzenes, chloroethylenes or methylene chloride, aliphatic hydrocarbons, such as cyclohexane or paraffins, e.g.
  • Petroleum fractions mineral and vegetable oils, alcohols such as butanol or glycol and their ethers and esters, ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone or cyclohexanone, strongly polar solvents such as dimethyl sulfoxide, and water.
  • the carrier means a natural or synthetic, organic or inorganic substance, which may be solid or liquid, with which the active ingredients for better applicability, in particular for application to plants or plant parts or seeds, are mixed or connected.
  • the solid or liquid carrier is generally inert and should be useful in agriculture. Suitable solid or liquid carriers are, for example, ammonium salts and ground natural minerals, such as kaolins, clays, talc, chalk, quartz, attapulgite, montmorillonite or diatomaceous earth, and ground synthetic minerals, such as finely divided silica, alumina and silicates.
  • Suitable solid carriers for granules are, in particular, for example broken and fractionated natural rocks such as calcite, marble, pumice, sepiolite, dolomite and synthetic granules of inorganic and organic flours and also granules of organic material such as paper, sawdust, coconut shells, corn cobs and tobacco stems.
  • non-ionic and anionic emulsifiers such as polyoxyethylene fatty acid esters, polyoxyethylene fatty alcohol ethers, e.g. Alkylarylpolyglykolether, alkylsulfonates, alkyl sulfates, arylsulfonates and protein hydrolysates in question.
  • Dispersants used are nonionic and / or ionic substances, e.g. from the classes of alcohol POE and / or POP ethers, acid and / or POP POE esters, alkyl aryl and / or POP POE ethers, fatty and / or POP POE adducts, POE and / or POP polyol derivatives, POE and / or POP sorbitol or sugar adducts, alkyl or aryl sulfates, sulfonates and phosphates or the corresponding PO ether adducts.
  • nonionic and / or ionic substances e.g. from the classes of alcohol POE and / or POP ethers, acid and / or POP POE esters, alkyl aryl and / or POP POE ethers, fatty and / or POP POE adducts, POE and / or POP polyol derivatives, POE
  • oligo- or polymers are e.g. those starting from vinylic monomers, from acrylic acid, from EO and / or PO alone or in combination with e.g. (poly) alcohols or (poly) amines.
  • lignin and its sulfonic acid derivatives, simple and modified celluloses, aromatic and / or aliphatic sulfonic acids and their adducts with formaldehyde can be used.
  • Adhesives such as carboxymethylcellulose, natural and synthetic powdery, granular or latex-type polymers can be used in the formulations, such as gum arabic, polyvinyl alcohol, polyvinyl acetate, as well as natural phospholipids such as cephalins and lecithins and synthetic phospholipids.
  • Dyes such as inorganic pigments, e.g. Iron oxide, titanium oxide, ferrocyan blue and organic dyes such as alizarin, azo and metal phthalocyanine dyes and trace nutrients such as salts of iron, manganese, boron, copper, cobalt, molybdenum and zinc.
  • inorganic pigments e.g. Iron oxide, titanium oxide, ferrocyan blue and organic dyes such as alizarin, azo and metal phthalocyanine dyes and trace nutrients such as salts of iron, manganese, boron, copper, cobalt, molybdenum and zinc.
  • additives may be fragrances, mineral or vegetable optionally modified oils, waxes and nutrients (also trace nutrients), such as salts of iron, manganese, boron, copper, cobalt, molybdenum and zinc.
  • Stabilizers such as cold stabilizers, preservatives, antioxidants, light stabilizers or other chemical and / or physical stability-improving agents may also be present.
  • the content of 4- ⁇ [(6-chloro-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one of the use forms prepared from the formulations can vary widely.
  • the content of 4- ⁇ [(6-chloro-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one of the use forms is in the range of 0.00000001 to 97 wt.
  • % preferably in the range of 0.0000001 to 97% by weight, more preferably in the range of 0.000001 to 83% by weight or 0.000001 to 5% by weight and most preferably in the range of 0, 0001 to 1 wt .-%.
  • the co-crystals according to the invention may optionally be used in certain concentrations or application rates together with herbicides, safeners, growth regulators or agents for improving plant properties, or with microbicides, for example fungicides, especially antimycotics, bactericides, viricides (including anti-viral agents) or agents MLO (Mycoplasma-like-organism) and RLO (Rickettsia-like-organism) are used.
  • fungicides especially antimycotics, bactericides, viricides (including anti-viral agents) or agents MLO (Mycoplasma-like-organism) and RLO (Rickettsia-like-organism) are used.
  • FIGS. 1 and 2 below show in each case the intensities of an X-ray radiation [I] determined in accordance with the exemplary embodiments over twice the respectively dimensioned diffraction angle [2 ⁇ ].
  • Fig. 1 shows an X-ray diffraction analysis of a powder of the inventive co-crystal containing 4- ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one and benzoic acid as Co-former according to Example 2 in conjunction with Example 4.
  • Fig. 2 shows an X-ray diffraction analysis of a powder of the inventive co-crystal containing 4- ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one and benzoic acid as Co-former according to Example 3 in conjunction with Example 4.
  • Example 3 shows measured data of a differential calorimetry (DSC) according to Example 5, plotted as thermal power (P) of a powder of 4- ⁇ [(6-chloropyrid-3-yl) methyl] taken up at a temperature (T) (FIG. 2-difluoroethyl) amino ⁇ furan-2 (5H) -one according to Example 1 (A) and a powder from Example 2 (B).
  • DSC differential calorimetry
  • the milled material was dried overnight at room temperature (23 ° C) and ambient pressure (1013 hPa) to evaporate the ethyl acetate. A powder was obtained which was supplied to Examples 4 and 5.
  • Crystals of about 1 mm size were formed overnight at room temperature (23 ° C.) and under ambient pressure (1013 hPa).
  • Example 6 Individual single crystals are removed and fed to the experiment according to Example 6. The remaining crystals are crushed by hand and subjected to a study according to Example 4.
  • Example 4 Powder X-ray diffractometric measurement (p-XRD) of the powder from Examples 2 and 3
  • the powder obtained from Examples 2 and 3 was examined using an X-ray diffractometer (Stoe, type STADI-P transmission diffractometer, primary monochromator: Ge [11], radiation source, Cu Ka i, wavelength 1.54 ⁇ , detector: linear PSD) , Examination of the powder of Example 2 yielded the characteristic X-ray diffractogram shown in FIG. Examination of the powder of Example 3 yielded the characteristic X-ray diffractogram shown in FIG.
  • X-ray diffractometer Stoe, type STADI-P transmission diffractometer, primary monochromator: Ge [11], radiation source, Cu Ka i, wavelength 1.54 ⁇ , detector: linear PSD
  • FIGS. 1 and 2 are X-ray diffractograms of the same substance. Both X-ray diffractograms are of those of the pure substances 4 - ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-) difluoroethyl) amino ⁇ furan-2 (5H) -one and benzoic acid (both not shown here). Accordingly, both inventive methods for producing a Co crystal according to the invention form the same co-crystal.
  • Example 5 Differential calorimetry (DSC) of the powders of Example 2 and of 4 - ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one
  • DSC Differential calorimetry
  • the melting point of the co-crystal of 4 - ⁇ [(6-chloropyrid-3-yl) methyl] (2,2-difluoroethyl) amino ⁇ furan-2 (5H) -one and benzoic acid according to Example 2 is about 105 ° C ,
  • the melting point of the resulting substance is increased.
  • Example 6 X-ray diffraction analysis (XRD) of the single crystal from Example 3
  • the measured data were recorded in all spatial directions, ie the detector was moved completely around the sample by one horizontal and one vertical angle.
  • the measurement data were collected and logged using the software Crysalis (Oxford Diffraction 2007).

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

L'invention concerne de nouveaux co-cristaux de 4-{[(6-chloropyrid-3-yl)méthyl](2,2-difluoro-éthyl)amino}furan-2(5H)-one contenant de l'acide benzoïque, ainsi que des procédés pour leur préparation et leur utilisation.
EP10768941A 2009-10-27 2010-10-26 Co-cristal de 4-{[(6-chloropyrid-3-yl)méthyl](2,2-difluoro-éthyl)amino}furan-2(5h)-one contenant de l'acide benzoïque et son utilisation comme pesticide Withdrawn EP2493882A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10768941A EP2493882A1 (fr) 2009-10-27 2010-10-26 Co-cristal de 4-{[(6-chloropyrid-3-yl)méthyl](2,2-difluoro-éthyl)amino}furan-2(5h)-one contenant de l'acide benzoïque et son utilisation comme pesticide

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09013509 2009-10-27
EP10768941A EP2493882A1 (fr) 2009-10-27 2010-10-26 Co-cristal de 4-{[(6-chloropyrid-3-yl)méthyl](2,2-difluoro-éthyl)amino}furan-2(5h)-one contenant de l'acide benzoïque et son utilisation comme pesticide
PCT/EP2010/066093 WO2011051240A1 (fr) 2009-10-27 2010-10-26 Co-cristal de 4-{[(6-chloropyrid-3-yl)méthyl](2,2-difluoro-éthyl)amino}furan-2(5h)-one contenant de l'acide benzoïque et son utilisation comme pesticide

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EP2493882A1 true EP2493882A1 (fr) 2012-09-05

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US (1) US20120283294A1 (fr)
EP (1) EP2493882A1 (fr)
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WO2015072355A1 (fr) * 2013-11-13 2015-05-21 日本曹達株式会社 Co-cristal et son procédé de production

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EP1991229A2 (fr) 2006-02-27 2008-11-19 Vertex Pharmaceuticals Incorporated Co-cristaux et compositions pharmaceutiques les comprenant
DE102006015467A1 (de) * 2006-03-31 2007-10-04 Bayer Cropscience Ag Substituierte Enaminocarbonylverbindungen
WO2008013823A2 (fr) 2006-07-26 2008-01-31 Scios Inc. Co-cristaux de (2r-trans)-6-chloro-5-[[4-[(4-fluorophényl)méthyl]-2,5-diméthyl-1-pipérazinyl]carbonyl]-n,n,1-triméthyl-alpha-oxo-1h-indole-3-acétamide
TW200901889A (en) 2007-02-09 2009-01-16 Basf Se Crystalline complexes of agriculturally active organic compounds
EP2042496A1 (fr) 2007-09-18 2009-04-01 Bayer CropScience AG Procédé de fabrication de 4-aminobut-2-énoïque

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US20120283294A1 (en) 2012-11-08
WO2011051240A1 (fr) 2011-05-05

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