WO2005049736A1 - ポリメチン系化合物の非溶媒和型結晶及びその製造方法 - Google Patents
ポリメチン系化合物の非溶媒和型結晶及びその製造方法 Download PDFInfo
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- WO2005049736A1 WO2005049736A1 PCT/JP2004/016830 JP2004016830W WO2005049736A1 WO 2005049736 A1 WO2005049736 A1 WO 2005049736A1 JP 2004016830 W JP2004016830 W JP 2004016830W WO 2005049736 A1 WO2005049736 A1 WO 2005049736A1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
- C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
- C07D403/08—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a carbon chain containing alicyclic rings
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
- C09B67/0092—Dyes in solid form
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
- C07D209/04—Indoles; Hydrogenated indoles
- C07D209/10—Indoles; Hydrogenated indoles with substituted hydrocarbon radicals attached to carbon atoms of the hetero ring
- C07D209/14—Radicals substituted by nitrogen atoms, not forming part of a nitro radical
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
- C09B23/0066—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain being part of a carbocyclic ring,(e.g. benzene, naphtalene, cyclohexene, cyclobutenene-quadratic acid)
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0025—Crystal modifications; Special X-ray patterns
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/145—Infrared
Definitions
- the present invention relates to a novel unsolvated crystal of a polymethine compound, a method for producing the same, and a near-infrared absorbing agent using the unsolvated crystal.
- polymethine-based compounds have been widely used as optical recording media, near-infrared absorption filter materials, photothermal conversion agents for plate making materials using laser light, and the like.
- general-purpose semiconductor lasers for example, in the laser range of 780 nm to 830 nm, and has good solubility in general-purpose solvents such as methanol and ethanol.
- general-purpose solvents such as methanol and ethanol.
- the most common method is to react the indolenium compound of the formula (III) with the dianyl compound of the formula (VI) to synthesize a polymethine compound.
- the type of the acidic residue Z— is restricted from the viewpoint of the reaction yield of the produced polymethine compound, the operability of isolation and purification, and the like.
- Halogen ions especially those that are C1- and Br- Is not known.
- the diformyl compound of formula (V) used here has toxicity with poor storage stability (positive mutagenicity), so it must be handled with care and used as a raw material in industrial production methods.
- a synthesis example of a compound having the same basic structural formula as the polymethine compound of the present invention in which the counter ion is Br— is disclosed in Example 1 of WO01Z07524. Then, the present inventors tried synthesis of a compound having the same structure as the polymethine compound of the present invention according to the method disclosed in WO01Z07524. However, the obtained compound is a hydrate and a low-purity product, and cannot be used in a system in which use is greatly restricted, for example, in which water has an adverse effect.
- the method for reacting the indoline compound of the formula (IV) with the dianyl compound of the formula (VI) is a compound having a basic structural formula different from that of the polymethine compound of the present invention.
- a production example of — is disclosed in Example 3 of JP-A-62-36469.
- this substance is a hydrate and a very low-purity compound, it cannot be used in a system having a large restriction in use, for example, in a system in which water has an adverse effect.
- solvate is a generic term including hydrates.
- known compounds having the same structural formula as the compound of the present invention are solvates caused by the production method thereof, and have low restrictions on use because they are low-purity products.
- CTP Computer To Plate
- the solution stability is poor and the purity is not stable.
- the light-to-heat conversion efficiency fluctuates greatly, and the practical problem is great.
- An object of the present invention is to provide a novel polymethine compound having good stability in a solution, high gram extinction coefficient, high purity, stability and easy handling, and high sensitivity to a general-purpose semiconductor laser. It is to provide an unsolvated crystal.
- the present inventors have found that a novel unsolvated crystal having a specific structure has good stability in a solution and a high gram extinction coefficient.
- the present inventors have found that they can be used as near-infrared absorbers that are highly sensitive to laser light in the vicinity of 780 nm to 830 nm, have high purity, are stable, and can be easily processed for various uses, and have completed the present invention.
- the first invention of the present application is an unsolvated crystal of a polymethine compound represented by the following formula (I).
- the unsolvated crystal of the polymethine compound of the present invention has a melting point (decomposition temperature) of not less than 205 ° C when X is C1 and not less than 220 ° C when X is C1, and TG-DTA (thermogravimetric measurement differential). Thermal analysis) In the measurement diagram, the TG weight loss value at 150 ° C or less was 3% or less for both crystals, and the crystals were substantially solvated.
- the diffraction angle (2 ⁇ ⁇ 0.2 °) in powder X-ray diffraction by Cu—K ray is 11.2 °, 16.7 °, 24.2 °, 25.3 X-ray diffraction pattern showing characteristic peaks at °
- the diffraction angle (20 ⁇ 0.2 °) in the powder X-ray diffraction method using Cu—K line It is characterized by an X-ray powder diffractogram showing characteristic peaks at 0 °, 20.5 °, 21.1 ° and 24.9 °.
- the second invention of the present application has the following formula (II):
- R represents an alkyl group, an alkoxyalkyl group, or an aryl group which may have a substituent.
- the third invention of the present application is a near-infrared absorbing agent containing an unsolvated crystal of the polymethine compound of the formula (I).
- FIG. 1 is a powder X-ray diffraction diagram of the polymethine compound of Example 1.
- FIG. 2 is an IR absorption spectrum of the polymethine compound of Example 1.
- FIG. 3 is a TG-DTA (thermogravimetric differential thermal analysis) diagram of the polymethine compound of Example 1.
- FIG. 4 is a powder X-ray diffraction diagram of the polymethine compound of Example 2.
- FIG. 5 is an IR absorption spectrum of the polymethine compound of Example 2.
- FIG. 6 is a TG-DTA (thermogravimetric differential thermal analysis) diagram of the polymethine compound of Example 2.
- FIG. 7 is a powder X-ray diffraction chart of the compound of Comparative Example 1.
- FIG. 8 is a TG-DTA (thermogravimetry-differential thermal analysis) measurement diagram of the compound of Comparative Example 1.
- FIG. 9 is a powder X-ray diffraction chart of the compound of Comparative Example 2.
- FIG. 10 is a TG-DTA (thermogravimetry-differential thermal analysis) measurement diagram of the compound of Comparative Example 2. Detailed description of the invention
- the compound represented by the known chemical structural formula (I) or the compound of the formula (I) obtained by a known production method is a substance solvated with water or an organic solvent (eg, methanol, ethanol, etc.). And often low purity.
- the unsolvated crystal of the polymethine compound of the present invention represented by the formula (I) is a completely novel crystal that is not solvated with water or an organic solvent.
- the melting point (decomposition temperature) is 205 ° C or more, and preferably 210 ° C to 240 ° C. It is. Solvates and Z or low purity products have melting points below 205 ° C.
- the melting point (decomposition temperature) is 215 ° C or more, preferably 220 ° C to 250 ° C. It is. Solvates and Z or low purity products have melting points below 215 ° C.
- the melting point (decomposition temperature) can be observed very clearly. May not show a distinct melting point or decomposition temperature.
- the TG-DTA (Thermal Weight Measurement Differential Thermal Analysis) measurement diagram of the unsolvated crystal of the polymethine compound represented by the formula (I) of the present invention shows that the TG weight loss value at 150 ° C or less is shown. It is at most 3%, preferably at most 2%. Solvates and Z or low purity products have a TG weight loss of less than 150% below 150 ° C.
- the unsolvated crystal of the polymethine compound represented by the formula (I) of the present invention has a diffraction angle (20 ⁇ 20) in powder X-ray diffraction using Cu— ⁇ ray. 0.2 °) 11.2 °, 16.7 °, 24.2 °, 25.3 °, preferably 11.2 °, 16.7 °, 18.5 °, 24.2 °, 25.3 ° and 26.7 ° show characteristic peaks.
- the powder X-ray diffraction patterns are completely different.
- the unsolvated crystal of the polymethine compound of the present invention can be produced for the first time by passing through (as a raw material) a polymethine ether conjugate represented by the formula (II).
- the unsolvated crystal of the polymethine compound represented by the formula (I) of the present invention is an alcohol-based compound such as methanol or ethanol used in the field of laser thermosensitive recording materials utilizing laser light. It is very suitable for this field of application because the solution stability in a solvent or a ketone solvent such as acetone or methyl ethyl ketone is higher than that of a known solvate compound.
- the extinction coefficient in the 780-830 nm region is high, it can be suitably used as a general-purpose semiconductor laser having an emission region in the range of 780-830 nm in many recording material fields using laser light. It is extremely useful in the field of recording materials such as laser thermal transfer recording materials and laser thermosensitive recording materials, and plate making materials.
- the unsolvated crystal of the polymethine compound represented by the formula (I) of the present invention is produced by the following method. Can be built.
- R represents an alkyl group, an alkoxyalkyl group, or an aryl group which may have a substituent.
- R is an alkyl group
- a linear or branched alkyl group having 114 carbon atoms is particularly preferable, and a linear or branched alkyl group having 118 carbon atoms is preferable.
- Examples include methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, isopentyl, neopentyl, n-hexyl Group, isohexyl group, sec-hexyl group, 2-ethylbutyl group, n-heptyl group, isoheptyl group, sec-heptyl group, n-octyl group, and 2-ethylhexyl group.
- I can do it.
- R is an alkoxyalkyl group
- those having 2 to 8 carbon atoms are preferable, and those having 2 to 4 carbon atoms are particularly preferable.
- Examples thereof include a methoxymethyl group, a 2-methoxyethyl group, a 3-methoxypropyl group, a 2-ethoxymethyl group, a 2-ethoxyxyl group, a 2-propoxyethyl group, and a 2-butoxyethyl group.
- R is an aryl group which may have a substituent
- a substituent examples include a phenyl group which may have a substituent and a naphthyl group which may have a substituent.
- a phenyl group is preferred.
- the substituent include an alkyl group, an amino group, a nitro group, an alkoxy group, a hydroxyl group, a halogen atom, and the like, and an alkyl group having 114 carbon atoms or an alkoxy group having 114 carbon atoms is preferable!
- R is a fuel group having an alkyl group
- R is a fuel group having an alkyl group
- Examples of the case where R is a fuel group having an alkyl group include a 2-methylphenyl group, 3-methylphenyl, 4-methylphenyl, 2,3-dimethylphenyl, 2,4-dimethylphenyl, 3,4-dimethylphenyl, 2,5-dimethylphenyl, 2, 6-dimethylphenyl, 2-elfyl, 3-ethylphenyl, 4-ethylphenyl, 2,3-getylphenol, 2,4-getylphenol, 3,4- Examples include a getylphenol group, a 2,5- getylphenol group, and a 2,6- getylphenol group.
- Examples of the compound in which R is a fuel group having an alkoxy group include a 2-methoxyphenyl group, a 3-methoxyphenyl group, a 4-methoxyphenyl group, a 2,3-dimethoxyphenyl group, Examples include a 2,4-dimethoxyphenyl group, a 3,4-dimethoxyphenyl group, a 2,5-dimethoxyphenyl group, and a 2,6-dimethoxyphenyl group.
- organic solvent examples include alcohols such as methanol, ethanol, n-propanol, iso-propanol and n-butanol; ketones such as acetone, methylethylketone, methylpropylketone and methylbutylketone; and tetrahydrofuran and dioxane.
- alcohols such as methanol, ethanol, n-propanol, iso-propanol and n-butanol
- ketones such as acetone, methylethylketone, methylpropylketone and methylbutylketone
- tetrahydrofuran and dioxane examples of the organic solvent.
- esters such as methyl acetate, ethyl acetate, and butyl acetate; aromatic hydrocarbons such as benzene, toluene, and xylene; halogenated hydrocarbons such as dichloromethane, trichloromethane, dichloroethane, and trichloroethane; dimethylformaldehyde; dimethyl
- aprotic polar solvents such as acetamide and dimethyl sulfoxide include alcohols such as methanol, ethanol, n-propanol, isopropanol, and n-butanol; acetone, methyl ethyl ketone; Chill propyl ketone and methyl butyl ketone, methyl acetic acid, acetic Echiru, esters such as ethyl acetate and butyl acetate are particularly preferred.
- the proportion of the compound represented by the formula (II) to hydrochloric acid or hydrobromic acid is usually about 0.5 to 3 mol, preferably about 1 to 1.5 mol, per 1 mol of the former.
- the organic solvent is usually used in an amount of about 110 L, preferably about 3 to 20 L per 1 mol of the compound represented by the specific example (II).
- the above-mentioned reaction proceeds suitably at a temperature of usually 100 ° C. or lower, preferably 10-70 ° C., and is generally completed in about several minutes to about 5 hours.
- the target substance After the reaction, the target substance can be easily isolated by filtration and washing. Further, it can be easily purified by a conventional purification means such as recrystallization.
- Isolation and purification solvents include general-purpose organic solvents such as methanol, ethanol, Alcohols such as pananol, iso-propanol and n-butanol; ketones such as acetone, methyl ethyl ketone, methyl propyl ketone and methyl butyl ketone; ethers such as tetrahydrofuran and dioxane; esters such as methyl acetate, ethyl acetate and butyl acetate.
- general-purpose organic solvents such as methanol, ethanol, Alcohols such as pananol, iso-propanol and n-butanol
- ketones such as acetone, methyl ethyl ketone, methyl propyl ketone and methyl butyl ketone
- ethers such as tetrahydrofuran and dioxane
- esters such as methyl acetate, ethyl acetate and but
- Benzene, toluene, xylene, etc., aromatic hydrocarbons, dichloromethane, trichloromethane, dichloroethane, trichloroethane, etc., halogenated hydrocarbons, dimethylformaldehyde, dimethylacetamide, dimethylsulfoxide, etc., aprotic polarities Solvents can be used, but ketone solvents such as acetone, methyl ethyl ketone, methyl propyl ketone, and methyl butyl ketone; ester solvents such as methyl acetate, ethyl acetate, and butyl acetate; or mixed solvents thereof. It is preferred. When a kind of a purification solvent, for example, methanol, ethanol, or toluene is used, solvation may be performed depending on isolation conditions.
- a kind of a purification solvent for example, methanol, ethanol, or toluene is
- the polymethine ether conjugate (II) is, for example, a polymethine compound represented by the following formula (VII) and an alkali metal alkoxide salt or alkali represented by the following formula (VIII): Can be produced by reacting metal aryloxide salt in organic solvent
- M represents an alkali metal
- R represents the same as described above.
- Z— represents an acidic residue, for example, F—, Cl—, Br—, ⁇ , BrO—, CIO—, BF
- TsO p-toluenesulfonate
- naphthalene carbonate naphthalenedicarbonate
- naphthalene sulfonate naphthalenedisulfonate
- CI—, Br—, ⁇ , and CIO— BF-, PF-, SbF-, CF CO- , CF SO-, CH SO-, benzene carbonate, benzene sulfonate, TsO-
- TsO— is preferred.
- M includes, for example, alkali metals such as sodium and potassium.
- Examples of the organic solvent include alcohols such as methanol, ethanol, n-propanol, iso-propanol, and n-butanol; ethers such as tetrahydrofuran and dioxane; esters such as methyl acetate, ethyl acetate and butyl acetate; benzene; Examples include aromatic hydrocarbons such as toluene and xylene; halogenated hydrocarbons such as dichloromethane, trichloromethane, dichloroethane, and trichloroethane; and aprotic polar solvents such as dimethylformaldehyde, dimethylacetamide, and dimethyl sulfoxide.
- alcohols such as methanol, ethanol, n-propanol, iso-propanol, and n-butanol
- ethers such as tetrahydrofuran and dioxane
- esters such as methyl
- the ratio of the compound represented by the general formula (VII) to the compound represented by the general formula (VIII) is usually about 1 to 30 mol, preferably about 2 to 10 mol per 1 mol of the former. I do.
- the organic solvent is generally used in an amount of about 2 to 30 L, preferably about 5 to 20 L per 1 mol of the compound represented by the general formula (VII).
- the above reaction proceeds normally at about 0 to 100 ° C, preferably at 10 to 70 ° C, and is generally completed in about several minutes to about 10 hours.
- the target substance can be easily isolated by filtration and washing. Further, it can be easily purified by conventional purification means, for example, recrystallization, column separation and the like.
- the compound represented by the general formula (VII) can be synthesized by a method described in, for example, JP-A-2000-226528.
- a non-solvated crystal of the polymethine compound of the formula (I) may be used alone or, if necessary, a binder resin, other near-infrared absorbing substance, and coloring. You may mix a component, a coloring component, etc.
- the binder resin for example, a homopolymer or copolymer of an acrylic acid monomer such as acrylic acid, methacrylic acid, acrylate, methacrylate, methylcellulose, and ethylcellulose , Cellulose-based polymers such as cellulose acetate, polystyrene, vinyl chloride-vinyl acetate copolymer, Rubber-based thermoplastics such as copolymers of Bull-based polymers such as mouth lidone, polybutyl butyral, and polyvinyl alcohol, and copolymers of Birui conjugates, condensation polymers such as polyester and polyamide, and butadiene-styrene copolymers
- the polymer include a polymer and a polymer obtained by polymerizing and crosslinking a photopolymerizable conjugate such as an epoxy conjugate.
- Examples of the near-infrared absorbing material used in the near-infrared absorbing agent include various known near-infrared absorbing materials in addition to the non-solvated crystal of the polymethine compound of the general formula (I), without departing from the object of the present invention. Can be used together.
- Examples of near-infrared absorbing substances that can be used in combination include pigments such as carbon black and erin black, and "near-infrared absorbing dyes" (P45-51) of Chemical Industry (May, 1986). "Developments and market trends of functional dyes in the 1990s", CMC (1990) Chapter 2.3.3, polymethine dyes (cyanine dyes), phthalocyanine dyes, dithio-monoole metal complex dyes, naphthoquinone , Anthraquinone dyes, triphenylmethane (similar) dyes, polyamides, diimmonium dyes, etc., azo dyes, indoor diphosphorus metal complex dyes, pigments such as intermolecular CT dyes, dye dyes Is mentioned.
- the near-infrared absorbing agent of the present invention is used as a photothermal conversion agent for a plate making material using laser light, for example, paper, paper (for example, polyethylene, polypropylene, polystyrene, etc.) laminated paper, Plates of metals such as aluminum (including aluminum alloys), zinc, copper, etc., such as cellulose diacetate, cellulose triacetate, cellulose butyrate, polystyrene terephthalate, polyethylene, polystyrene, polypropylene, polycarbonate, polycarbonate It is possible to produce a printing plate precursor for plate making by applying a solution in which an unsolvated crystal of a polymethine compound represented by the formula (I) is dissolved in an organic solvent on a support such as a plastic film.
- a solution in which an unsolvated crystal of a polymethine compound represented by the formula (I) is dissolved in an organic solvent on a support such as a plastic film.
- the solvent used in the solution to be applied is not particularly limited, but examples thereof include hydrocarbons, halogenated hydrocarbons, ethers, ketones, alcohols, cellosolves, etc. Power tetrahydrofuran, dioxane, etc. Particularly preferred are ketones such as ethers, methyl ethyl ketone, methyl isobutyl ketone, and cyclohexanone, alcohol solvents such as methanol, ethanol, and propanol, and cellosolve solvents such as methyl sorb and ethyl sorb.
- Methyl ethyl ketone Methyl ethyl ketone, methyl isobutyl ketone, ketones such as cyclohexanone, methanol, ethanol Alcohol-based solvents such as ethanol and propanol are preferred! /.
- a non-solvated crystal of the polymethine compound represented by the formula (I) may be used as a coloring component or A coloring component or the like may be blended and used, or a layer containing a coloring component or a coloring component may be separately provided.
- the color-forming or coloring components are those that form images by physical and chemical changes due to the heat of sublimable dyes and pigments, electron-donating dye precursors, electron-accepting compounds, and polymerizable polymers. Power Various materials that have been studied can be used.
- the coloring components of the laser thermal transfer recording material are not particularly limited, pigment types such as titanium dioxide, carbon black, zinc oxide, Prussian blue, sulphide cadmium, iron oxide and lead, Inorganic pigments such as chromates of zinc, barium and calcium, and organic pigments such as azo, thioindigo, anthraquinone, anthanthronic, triphenedoxane, phthalocyanine, and quinacridone pigments.
- the dye include an acid dye, a direct dye, a disperse dye, an oil-soluble dye, and a metal-containing oil-soluble dye.
- the color forming component of the laser thermosensitive recording material is not particularly limited, but those conventionally used in thermosensitive recording materials can be used.
- the electron-donating dye precursor has a property of giving a color by donating electrons or accepting a proton such as an acid, and includes a compound such as ratatone, ratatam, sultone, spiropyran, ester, amide, etc.
- a compound having a partial skeleton and capable of ring-opening or cleaving the partial skeleton upon contact with an electron-accepting compound is used.
- triphenylmethane compounds for example, triphenylmethane compounds, fluoran compounds, phenothiazine compounds, indolylphthalide compounds, leucouramine compounds, rhodamine ratatam compounds, triphenylmethane compounds, triazene compounds, spiropyranes Compounds, fluorene compounds and the like.
- the electron-accepting compound include a phenolic compound, an organic acid or a metal salt thereof, and oxybenzoic acid ester.
- a non-solvated crystal of a polymethine compound represented by the formula (I) is made of a plastic. ⁇ Mixed with fats and organic solvents as the case may be. It can be produced by making it into a plate shape or a film shape by methods which have been studied.
- the resin that can be used is not particularly limited, and examples thereof include acrylic resin, polyethylene resin, Shiridani vinyl resin, Shiridani biylidene resin, and polycarbonate resin.
- the solvent to be used is not particularly limited, and examples thereof include hydrocarbons, halogenated hydrocarbons, ethers, ketones, alcohols, and cellosolves. Particularly, alcohol solvents such as methanol, ethanol, and propanol are used. Solvents: Preferred are cellosolve solvents such as methylcellosolve and ethylcellosolve.
- the near-infrared absorbing agent of the present invention is used for an optical recording material such as an optical card
- a solution in which an unsolvated crystal of a polymethine compound represented by the formula (I) is dissolved in an organic solvent is prepared.
- Conventional methods such as spin coating and the like have been studied by various methods, and can be produced by coating on a substrate such as glass or plastic resin.
- the resin that can be used for the substrate is not particularly limited, and examples thereof include acrylic resin, polyethylene resin, vinyl chloride resin, Shiridani biureiden resin, and polycarbonate resin.
- the solvent used for spin coating is not particularly limited, but includes, for example, hydrocarbons, halogenated hydrocarbons, ethers, ketones, alcohols, and cellosolves. Particularly, alcohols such as methanol, ethanol, and propanol.
- Solvent-based solvents Solvent-based solvents such as methyl-solve and ethyl-solve are preferred.
- the solubility of the crystals in methanol and ethanol was 25% or more, respectively. Elemental analysis value, melting point (decomposition temperature), absorption maximum wavelength max) and gram absorption The light coefficient ( ⁇ g) was as follows.
- FIG. 1 shows a powder X-ray diffraction pattern of the obtained crystal.
- Fig. 2 shows the IR ⁇ vector of the obtained crystal.
- FIG. 3 shows a TG-DTA (thermogravimetry / differential thermal analysis) diagram of the obtained crystal.
- the TG weight loss by TG-DTA 150 ° C or lower was 0%.
- the solubility of this compound in methanol and ethanol was 25% or more, respectively.
- the elemental analysis value, melting point (decomposition temperature), absorption maximum wavelength ( ⁇ max), and gram absorption coefficient ( ⁇ g) of this crystal were as follows.
- FIG. 4 shows a powder X-ray diffraction pattern of the obtained crystal.
- Fig. 5 shows the IR ⁇ vector of the obtained crystal.
- FIG. 6 shows a TG-DTA (thermogravimetric measurement differential thermal analysis) diagram of the obtained crystals.
- the TG weight loss by TG-DTA 150 ° C or lower was 0%.
- Laser light of a single mode semiconductor laser (wavelength 830 nm) was condensed by a lens and arranged so that the beam diameter was 10 m on the surface of the sample.
- the semiconductor laser was adjusted so that the laser beam reaching the surface could be varied in the range of 50-200 mW, and the sample was irradiated with a single pulse with a pulse width of 20 s. Observation of the irradiated sample by an optical microscope confirmed that a through hole with a diameter of about 10 m was formed when the laser power reaching the surface was 50 mW.
- FIG. 7 shows a powder X-ray diffraction diagram of the present danjido product.
- FIG. 8 shows a TG-DTA (thermogravimetry / differential thermal analysis) measurement diagram of the present conjugated product.
- the TG loss at 150 ° C. or less by TG-DTA was about 3.9%.
- the maximum absorption wavelength ( ⁇ max) and gram extinction coefficient ( ⁇ g) of the obtained i-danied product are as follows.
- FIG. 9 shows a powder X-ray diffraction pattern of the obtained i-dangling product.
- FIG. 10 shows a TG-DTA (thermogravimetry / differential thermal analysis) measurement diagram of the obtained compound.
- TG weight loss by TG DTA 150 ° C or lower was about 5.8%. Curls the moisture value of the compound As a result of measurement with a Fischer moisture meter, the moisture value was 5.6%.
- the TG weight loss was due to water, and it was found that the present compound was a hydrate.
- each of the polymethine compounds shown in Table 1 below was dissolved in a mixed solution of ethanol Z methylethyl ketone (lZl) to a concentration of 5% (w / v) and left indoors (at room temperature) for 10 days. Evaluation was performed by measuring the absorbance (gram extinction coefficient) of the solution before and after standing. The decomposition rate was calculated by the following equation. The results are shown in Table 1.
- Degradation rate (%) [(absorbance immediately after solution adjustment-absorbance after standing for 10 days) Z absorbance immediately after solution adjustment] X 100
- the non-solvated crystal of the polymethine compound of the present invention has high stability in a solution and is easy to handle, and has a high gram extinction coefficient and is highly sensitive to a general-purpose semiconductor laser. Further, since it has high solubility in alcohol solvents, it is extremely useful in the field of recording materials and plate making materials using laser light.
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Indole Compounds (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04818868A EP1686157A4 (en) | 2003-11-21 | 2004-11-12 | NONSOLVATORY CRYSTAL OF A POLYMETHIN COMPOUND AND METHOD FOR THE PRODUCTION THEREOF |
| US10/579,142 US7485404B2 (en) | 2003-11-21 | 2004-11-12 | Nonsolvate-form crystal of polymethine compound and process for producing the same |
| JP2005515592A JPWO2005049736A1 (ja) | 2003-11-21 | 2004-11-12 | ポリメチン系化合物の非溶媒和型結晶及びその製造方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003392789 | 2003-11-21 | ||
| JP2003-392789 | 2003-11-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005049736A1 true WO2005049736A1 (ja) | 2005-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2004/016830 Ceased WO2005049736A1 (ja) | 2003-11-21 | 2004-11-12 | ポリメチン系化合物の非溶媒和型結晶及びその製造方法 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7485404B2 (ja) |
| EP (1) | EP1686157A4 (ja) |
| JP (1) | JPWO2005049736A1 (ja) |
| KR (1) | KR20060110329A (ja) |
| WO (1) | WO2005049736A1 (ja) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4658805B2 (ja) * | 2003-06-25 | 2011-03-23 | 山本化成株式会社 | ポリメチン系エーテル化合物 |
| WO2012061403A1 (en) * | 2010-11-02 | 2012-05-10 | Life Technologies Corporation | Modified hydrocyanine dyes for the detection of reactive oxygen species |
| WO2013044156A1 (en) * | 2011-09-23 | 2013-03-28 | Li-Cor, Inc. | Application of reduced dyes in imaging |
| NL1043573B1 (en) | 2020-02-25 | 2022-01-28 | Belanda Tech | Docking device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001007524A1 (en) * | 1999-07-28 | 2001-02-01 | Avecia Limited | Cyanine infra-red absorbing compositions and processes for the p roduction thereof |
| JP2002356069A (ja) * | 2001-05-30 | 2002-12-10 | Fuji Photo Film Co Ltd | 熱転写シート |
| WO2005000814A1 (ja) * | 2003-06-25 | 2005-01-06 | Yamamoto Chemicals, Inc. | ポリメチン系エーテル化合物 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4973572A (en) * | 1987-12-21 | 1990-11-27 | Eastman Kodak Company | Infrared absorbing cyanine dyes for dye-donor element used in laser-induced thermal dye transfer |
| US5386058A (en) * | 1993-10-29 | 1995-01-31 | Minnesota Mining And Manufacturing Company | Method of producing polymethine dyes |
| US6706466B1 (en) * | 1999-08-03 | 2004-03-16 | Kodak Polychrome Graphics Llc | Articles having imagable coatings |
| US6391524B2 (en) * | 1999-11-19 | 2002-05-21 | Kodak Polychrome Graphics Llc | Article having imagable coatings |
| JP2004029191A (ja) * | 2002-06-24 | 2004-01-29 | Mitsubishi Chemicals Corp | ネガ型画像形成材料の製造方法及びネガ画像形成方法 |
-
2004
- 2004-11-12 US US10/579,142 patent/US7485404B2/en not_active Expired - Fee Related
- 2004-11-12 EP EP04818868A patent/EP1686157A4/en not_active Withdrawn
- 2004-11-12 JP JP2005515592A patent/JPWO2005049736A1/ja active Pending
- 2004-11-12 WO PCT/JP2004/016830 patent/WO2005049736A1/ja not_active Ceased
- 2004-11-12 KR KR1020067012116A patent/KR20060110329A/ko not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001007524A1 (en) * | 1999-07-28 | 2001-02-01 | Avecia Limited | Cyanine infra-red absorbing compositions and processes for the p roduction thereof |
| JP2002356069A (ja) * | 2001-05-30 | 2002-12-10 | Fuji Photo Film Co Ltd | 熱転写シート |
| WO2005000814A1 (ja) * | 2003-06-25 | 2005-01-06 | Yamamoto Chemicals, Inc. | ポリメチン系エーテル化合物 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1686157A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1686157A4 (en) | 2009-03-25 |
| EP1686157A1 (en) | 2006-08-02 |
| US7485404B2 (en) | 2009-02-03 |
| US20070083048A1 (en) | 2007-04-12 |
| KR20060110329A (ko) | 2006-10-24 |
| JPWO2005049736A1 (ja) | 2007-06-07 |
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