Document Type and Number:
Japanese Patent JPH0361657
Kind Code:
B2
Abstract:
The present invention relates to a novel process for the preparation of 3-(2-arylvinyl)-2,2-dimethylcyclopropan-1-carboxylic acids and esters of the formula (I) in which Ar represents substituted or unsubstituted phenyl, X represents hydrogen or halogen and R represents hydrogen or C1-C4-alkyl, by reacting aldehydes of the formula (II) with 2-methylbutan-3-one, halogenating the in this case resulting 4,4-dimethyl-3-halo-1-aryl-1-hexen-5-ones of the formula (IV) and reacting the in this case resulting compounds of the formula (V) with bases.
Inventors:
RAINHARUTO RANTSUSHU
DEIITAA ARURUTO
MANFUREETO YAUTERAATO
DEIITAA ARURUTO
MANFUREETO YAUTERAATO
Application Number:
JP7766983A
Publication Date:
September 20, 1991
Filing Date:
May 04, 1983
Export Citation:
Assignee:
BAYER AG
International Classes:
C07C69/747; B01J27/08; C07B61/00; C07C45/00; C07C45/63; C07C45/72; C07C45/75; C07C49/227; C07C49/235; C07C49/255; C07C51/00; C07C61/40; C07C62/34; C07C67/00
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