PROCESS FOR THE PREPARATION OF ARYLACETIC ESTER DERIVATIVES VIA PALLADIUM-CATALYZED CROSS COUPLING REACTION

PCT No. PCT/EP95/00146 Sec. 371 Date Jul. 22, 1996 Sec. 102(e) Date Jul. 22, 1996 PCT Filed Jan. 16, 1995 PCT Pub. No. WO95/20569 PCT Pub. Date Aug. 3, 1995Process for the preparation of 2-methoxyimino-2-arylacetic esters of formula (I) in which R is C1-C12alkyl, which comprises reacting an appropri...

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Bibliographic Details
Main Authors ZIEGLER, HUGO, STUTZ, WOLFGANG, NEFF, DENIS
Format Patent
LanguageEnglish
French
German
Published 13.11.1996
Edition6
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:PCT No. PCT/EP95/00146 Sec. 371 Date Jul. 22, 1996 Sec. 102(e) Date Jul. 22, 1996 PCT Filed Jan. 16, 1995 PCT Pub. No. WO95/20569 PCT Pub. Date Aug. 3, 1995Process for the preparation of 2-methoxyimino-2-arylacetic esters of formula (I) in which R is C1-C12alkyl, which comprises reacting an appropriately substituted boronic acid of general formula (II) or the trimeric form (lII) herein, which is in equilibrium with it, in the presence of a Pd catalyst, with a methoxyiminoacetic ester of formula (IV) in which R is C1-C12alkyl and X is a leaving group. According to a further process variant, in principle the groups which split off the two reactants may change places. The process can be applied not only to phenyl derivatives but also to larger ring systems (naphthyl, pyridyl, heterocycles).
Bibliography:Application Number: EP19950906952