Title:
PRODUCTION OF (Z)-2-(2-ARYL ETHENYL)-ARYLCARBOXYLIC ACID
Document Type and Number:
Japanese Patent JPS63166847
Kind Code:
A
Abstract:
(Z)-2-(2-arylethenyl)arylcarboxylic acids of the general formula I (I) where A is a group for completing an aromatic ring system and Ar is an aromatic radical, are prepared by reacting a 2-formylarylcarboxylic acid of the general formula II (II) with an (arylmethyl)phosphonium salt of the general formula III (III) where R1, R2 and R3 are each organic radicals and X is halogen, in the presence of a base at from (-20 DEG ) to +30 DEG C. by carrying out the reaction in the presence of a C1-C5-alkanol and/or a C2-C4-alkanediol.
Inventors:
THYES MARCO (DE)
STEINER GERD (DE)
STEINER GERD (DE)
Application Number:
JP32419187A
Publication Date:
July 11, 1988
Filing Date:
December 23, 1987
Export Citation:
Assignee:
BASF AG
International Classes:
C07C51/00; C07C51/353; C07C63/66; C07C63/74; C07C65/28; C07C67/00; C07C63/331; C07C201/00; C07C205/06; C07C205/56; C07C253/00; C07C255/50; C07C255/57; (IPC1-7): C07C51/353; C07C63/331; C07C63/74; C07C65/28; C07C79/38; C07C121/52
Attorney, Agent or Firm:
Toshio Yano (2 outside)
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