ES2136437T3 - Catalizadores de rutenio y su utilizacion en la hidrogenacion asimetrica de ciclopentenonas. - Google Patents

Catalizadores de rutenio y su utilizacion en la hidrogenacion asimetrica de ciclopentenonas.

Info

Publication number
ES2136437T3
ES2136437T3 ES96937439T ES96937439T ES2136437T3 ES 2136437 T3 ES2136437 T3 ES 2136437T3 ES 96937439 T ES96937439 T ES 96937439T ES 96937439 T ES96937439 T ES 96937439T ES 2136437 T3 ES2136437 T3 ES 2136437T3
Authority
ES
Spain
Prior art keywords
cyclopentenons
complex
ruthenium catalysts
acid
treatment
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.)
Expired - Lifetime
Application number
ES96937439T
Other languages
English (en)
Inventor
Valentin Rautenstrauch
Koenraad P M Vanhessche
Jean-Pierre Genet
Jean-Yves Lenoir
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.)
Firmenich SA
Original Assignee
Firmenich SA
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 Firmenich SA filed Critical Firmenich SA
Application granted granted Critical
Publication of ES2136437T3 publication Critical patent/ES2136437T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/18—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms
    • B01J31/1845—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms the ligands containing phosphorus
    • B01J31/1875—Phosphinites (R2P(OR), their isomeric phosphine oxides (R3P=O) and RO-substitution derivatives thereof)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/22—Organic complexes
    • B01J31/2282—Unsaturated compounds used as ligands
    • B01J31/2295—Cyclic compounds, e.g. cyclopentadienyls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/24—Phosphines, i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, phosphole or anionic phospholide ligands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/24—Phosphines, i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, phosphole or anionic phospholide ligands
    • B01J31/2404—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring
    • B01J31/2409—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring with more than one complexing phosphine-P atom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/24—Phosphines, i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, phosphole or anionic phospholide ligands
    • B01J31/2404—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring
    • B01J31/2419—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring comprising P as ring member
    • B01J31/2428—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring comprising P as ring member with more than one complexing phosphine-P atom
    • B01J31/2433—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring comprising P as ring member with more than one complexing phosphine-P atom comprising aliphatic or saturated rings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/24—Phosphines, i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, phosphole or anionic phospholide ligands
    • B01J31/2404—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring
    • B01J31/2442—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring comprising condensed ring systems
    • B01J31/2447—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring comprising condensed ring systems and phosphine-P atoms as substituents on a ring of the condensed system or on a further attached ring
    • B01J31/2452—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring comprising condensed ring systems and phosphine-P atoms as substituents on a ring of the condensed system or on a further attached ring with more than one complexing phosphine-P atom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/24—Phosphines, i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, phosphole or anionic phospholide ligands
    • B01J31/2404—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring
    • B01J31/2442—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring comprising condensed ring systems
    • B01J31/2447—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring comprising condensed ring systems and phosphine-P atoms as substituents on a ring of the condensed system or on a further attached ring
    • B01J31/2452—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring comprising condensed ring systems and phosphine-P atoms as substituents on a ring of the condensed system or on a further attached ring with more than one complexing phosphine-P atom
    • B01J31/2457—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring comprising condensed ring systems and phosphine-P atoms as substituents on a ring of the condensed system or on a further attached ring with more than one complexing phosphine-P atom comprising aliphatic or saturated rings, e.g. Xantphos
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
    • C07C67/303—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by hydrogenation of unsaturated carbon-to-carbon bonds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
    • B01J2231/60—Reduction reactions, e.g. hydrogenation
    • B01J2231/64—Reductions in general of organic substrates, e.g. hydride reductions or hydrogenations
    • B01J2231/641—Hydrogenation of organic substrates, i.e. H2 or H-transfer hydrogenations, e.g. Fischer-Tropsch processes
    • B01J2231/645—Hydrogenation of organic substrates, i.e. H2 or H-transfer hydrogenations, e.g. Fischer-Tropsch processes of C=C or C-C triple bonds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/02—Compositional aspects of complexes used, e.g. polynuclearity
    • B01J2531/0202—Polynuclearity
    • B01J2531/0205—Bi- or polynuclear complexes, i.e. comprising two or more metal coordination centres, without metal-metal bonds, e.g. Cp(Lx)Zr-imidazole-Zr(Lx)Cp
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/80—Complexes comprising metals of Group VIII as the central metal
    • B01J2531/82—Metals of the platinum group
    • B01J2531/821—Ruthenium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/80—Complexes comprising metals of Group VIII as the central metal
    • B01J2531/84—Metals of the iron group
    • B01J2531/842—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/22—Organic complexes
    • B01J31/2282—Unsaturated compounds used as ligands
    • B01J31/2291—Olefins

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

SE DESCRIBE UN CATALIZADOR DE RUTENIO (II) QUE COMPRENDE LIGANDOS CONSTITUIDOS POR FOSFINAS BIDENTADAS, CARACTERIZADO PORQUE PUEDE OBTENERSE POR UN PROCEDIMIENTO QUE COMPRENDE EL TRATAMIENTO DE UN COMPLEJO DE RU (II) APROPIADO Y DE UN LIGANDO DIFOSFINADO BIDENTADO, PRESENTES EN CANTIDADES EQUIMOLARES, CON UN ACIDO DE FORMULA H, DONDE X REPRESENTA UN ANION NO COORDINANTE, SIENDO ESTE ACIDO UTILIZADO EN UNA PROPORCION QUE NO SOBREPASA 2 EQUIVALENTES POR MOL DEL COMPLEJO DE RU (II), PRODUCIENDOSE EL TRATAMIENTO EN UN MEDIO NO COMPLEJANTE O LIGERAMENTE COMPLEJANTE Y BAJO ATMOSFERA INERTE. ESTOS CATALIZADORES SON UTILES PARA LA PREPARACION DEL ISOMERO PREFERIDO DE HEDIONE{SUP,R}, DE CONFIGURACION (+)
ES96937439T 1995-11-22 1996-11-20 Catalizadores de rutenio y su utilizacion en la hidrogenacion asimetrica de ciclopentenonas. Expired - Lifetime ES2136437T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH330095 1995-11-22
CH162196 1996-06-28

Publications (1)

Publication Number Publication Date
ES2136437T3 true ES2136437T3 (es) 1999-11-16

Family

ID=25688186

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96937439T Expired - Lifetime ES2136437T3 (es) 1995-11-22 1996-11-20 Catalizadores de rutenio y su utilizacion en la hidrogenacion asimetrica de ciclopentenonas.

Country Status (6)

Country Link
US (1) US5874600A (es)
EP (1) EP0810903B1 (es)
JP (1) JP4063875B2 (es)
DE (1) DE69602586T2 (es)
ES (1) ES2136437T3 (es)
WO (1) WO1997018894A1 (es)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2750423B1 (fr) * 1996-06-28 1998-08-14 Rhone Poulenc Chimie Procede d'hydrogenation asymetrique d'un compose cetonique
US6214763B1 (en) 1997-05-20 2001-04-10 Firmenich Sa Ruthenium catalysts and their use in the asymmetric hydrogenation of weakly coordinating substrates
DE69820205T2 (de) * 1997-05-20 2004-09-30 Firmenich S.A. Ruthenium-katalysatoren und ihre verwendung zur asymmetrischen hydrierung von substraten mit schwacher koordination
NL1007776C2 (nl) * 1997-12-12 1999-06-15 Dsm Nv Katalysator voor de bereiding van chirale producten in optisch actieve vorm.
EP1042270B1 (en) * 1997-12-17 2003-04-09 Chirotech Technology Limited Asymmetric hydrogenation
GB9807888D0 (en) 1998-04-09 1998-06-10 Chirotech Technology Ltd Asymmetric hydrogenation
WO1999052852A1 (en) * 1998-04-09 1999-10-21 Chirotech Technology Limited Asymmetric hydrogenation
US6280519B1 (en) * 1998-05-05 2001-08-28 Exxon Chemical Patents Inc. Environmentally preferred fluids and fluid blends
US6586620B1 (en) 1999-11-05 2003-07-01 Firmenich Sa Process for the preparation of alkyl 3-oxo-2-pentyl-1-cyclopenteneacetates
US7494927B2 (en) 2000-05-15 2009-02-24 Asm International N.V. Method of growing electrical conductors
US20020119909A1 (en) * 2001-01-19 2002-08-29 Rhodia Chirex, Inc. Preparation of enantiomerically enriched flavor and fragrance components
JP4005800B2 (ja) * 2001-12-10 2007-11-14 高砂香料工業株式会社 新規不斉ホスフィン配位子
JP4101803B2 (ja) * 2002-09-26 2008-06-18 シエル・インターナシヨナル・リサーチ・マートスハツペイ・ベー・ヴエー リン原子に結合したｓｐ２混成炭素原子を含む架橋基を有する二座ジホスフィン組成物を用いてエチレン性不飽和化合物をヒドロホルミル化する方法
JP2006525865A (ja) * 2003-05-09 2006-11-16 ソルヴィーアス　アクチェンゲゼルシャフト エナンチオ選択的水素添加におけるホスホラン塩およびそれらの使用
JP4667027B2 (ja) * 2004-12-09 2011-04-06 旭化成イーマテリアルズ株式会社 シス−２、３−ジ置換シクロペンタノンの製造方法
US8025922B2 (en) 2005-03-15 2011-09-27 Asm International N.V. Enhanced deposition of noble metals
US7666773B2 (en) 2005-03-15 2010-02-23 Asm International N.V. Selective deposition of noble metal thin films
EP1900720B1 (en) 2005-06-30 2012-06-13 Asahi Kasei Chemicals Corporation Process for production of substituted cyclopentanone
US20070014919A1 (en) * 2005-07-15 2007-01-18 Jani Hamalainen Atomic layer deposition of noble metal oxides
US7435484B2 (en) * 2006-09-01 2008-10-14 Asm Japan K.K. Ruthenium thin film-formed structure
US20090087339A1 (en) * 2007-09-28 2009-04-02 Asm Japan K.K. METHOD FOR FORMING RUTHENIUM COMPLEX FILM USING Beta-DIKETONE-COORDINATED RUTHENIUM PRECURSOR
AR070841A1 (es) * 2008-03-13 2010-05-05 Bial Portela & Ca Sa Proceso de hidrogenacion catalitica asimetrica
US8084104B2 (en) 2008-08-29 2011-12-27 Asm Japan K.K. Atomic composition controlled ruthenium alloy film formed by plasma-enhanced atomic layer deposition
US9379011B2 (en) 2008-12-19 2016-06-28 Asm International N.V. Methods for depositing nickel films and for making nickel silicide and nickel germanide
US20110020546A1 (en) * 2009-05-15 2011-01-27 Asm International N.V. Low Temperature ALD of Noble Metals
US8871617B2 (en) 2011-04-22 2014-10-28 Asm Ip Holding B.V. Deposition and reduction of mixed metal oxide thin films
US9607842B1 (en) 2015-10-02 2017-03-28 Asm Ip Holding B.V. Methods of forming metal silicides
EP3601208B1 (en) 2017-03-31 2025-02-12 International Flavors & Fragrances Inc. Chemical process of preparing dehydrohedione
TWI918669B (zh) 2020-06-24 2026-03-21 荷蘭商Ａｓｍ Ｉｐ私人控股有限公司 含鉬薄膜的氣相沉積

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6918228A (en) * 1969-12-04 1971-06-08 Aliphatic keto-esters used in perfumes
FR2651152B1 (fr) * 1989-08-23 1991-11-29 Elf Aquitaine Perfectionnement a la preparation de catalyseurs chiraux a base de complexes du ruthenium et du phosphore.
JP2775335B2 (ja) * 1990-08-01 1998-07-16 高砂香料工業株式会社 ルテニウム―ホスフィン錯体及びその製造中間体
US5304524A (en) * 1991-06-17 1994-04-19 Ethyl Corporation Asymmetric hydrogenation of aromatic-substituted olefins using organoruthenium catalyst
FR2693190B1 (fr) * 1992-07-02 1994-09-23 Elf Aquitaine Procédé d'hydrogénation énantiosélectif de la double liaison C=O OXO.
JP3053872B2 (ja) * 1994-06-23 2000-06-19 フイルメニツヒ ソシエテ アノニム （＋）−（１ｒ）−シス−３−オキソ−２−ペンチル−１−シクロペンタン酢酸の製造法

Also Published As

Publication number Publication date
JPH10513402A (ja) 1998-12-22
EP0810903A1 (fr) 1997-12-10
EP0810903B1 (fr) 1999-05-26
US5874600A (en) 1999-02-23
DE69602586T2 (de) 2000-03-02
DE69602586D1 (de) 1999-07-01
WO1997018894A1 (fr) 1997-05-29
JP4063875B2 (ja) 2008-03-19

Similar Documents

Publication Publication Date Title
ATE116868T1 (de) Trägerkatalysatoren und ein verfahren zu ihrer herstellung.
DE3265984D1 (en) Process for producing ethylene glycol and/or glycolic acid ester, catalyst composition used therefor, and process for the production of this composition
ES2001152A4 (es) Preparados cosmeticos a base de n - hidroxibutil - quitosanas, nuevasn - hidroxibutil - quitosanas, asi como el procedimiento para su obtencion.
DK0643065T3 (da) Nye Bisphosphiner til asymmetriske hydrogeneringskatalysatorer
DE60043657D1 (de) Verfahren zur herstellung metallischen geträgerten katalysatoren beinhaltend einen behandlungschritt mit wässriger lösung aus brom und bromionen
ES8303386A1 (es) "un procedimiento para preparar acidos y esteres aminociclopentano-alquenoicos".
ATE64737T1 (de) Verfahren zur herstellung von lphosphinothricin(derivaten) sowie ihrer alkylester.
ATE86978T1 (de) Verfahren zur herstellung von 3,5-dimethyl-4methoxypyridinderivaten sowie neues zwischenprodukt hierfuer.
ATE196458T1 (de) Verfahren zur herstellung von xylitol
ES2106810T3 (es) Procedimiento para la policondensacion continua de acido tereftalico y 1,4-bis-(hidroximetil)-ciclohexano.
DE773924T1 (de) Verfahren zur herstellung von dicarbonsäurechlorid
ATE103580T1 (de) Verfahren zur herstellung von chloroform aus kohlenstofftetrachlorid, katalytische zusammensetzungen sowie verfahren zu ihrer herstellung.
ATE69979T1 (de) Herstellung von katalysatorharzen fuer die katalytische reduktion von sauerstoff in waessrigen medien.
DE69112262D1 (de) Verfahren zur Herstellung von Katalysatoren für die Herstellung von Methacrylsäure.
ATE192138T1 (de) Verfahren zur herstellung von halosubstituierter aromatischer säure
DE69003771D1 (de) Verfahren zur Herstellung Mangandioxydkatalysators zur Hydrierung von Cyanhydrinen.
MY108361A (en) Unsaturated polyesters and crosslinked membranes therefrom for aromatics/saturates separation
DE3767993D1 (de) Verfahren zur herstellung von thienylaethylaminen, und mittels des verfahrens hergestellte dithienylaethylamine.
ATE47861T1 (de) Verfahren zur herstellung von nphosphonomethylglycin.
DE69020701D1 (de) Niedriges Sedimentverfahren zur Herstellung von Kupfersalzen aus polyolefinsubstituierten Dicarbonsäuren.
DE59305080D1 (de) Verfahren zur herstellung von sclareolid
ATE75732T1 (de) Verfahren zur herstellung von vitamin a.
ES2180183T3 (es) Procedimiento para la obtencion de alcoholes que contienen grupos cicloalifaticos.
DE69405623D1 (de) Verfahren zur Herstellung von Cyclohexylaminen durch katalytische Hydrierung von Anilinen
ES2056363T3 (es) Un procedimiento para preparar alquilaminas secundarias.

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 810903

Country of ref document: ES