Title:
METHOD FOR PRODUCTION OF CYCLOPROPANE DERIVATIVE
Document Type and Number:
Japanese Patent JPS5377041
Kind Code:
A
Abstract:
Process for the preparation of 1-lower alkoxycarbonyl-3-( beta , beta -dichlorovinyl)-2,2-dimethylcyclopropanes from the corresponding 1-cyano-1-carboxylic acid ester by hydrolysis, decarboxylation of the free carboxylic acid, reaction of the cyclopropane nitrile with a lower aliphatic alcohol and anhydrous hydrogen chloride, followed by alcoholysis or hydrolysis of the reaction product so obtained to give the desired ester or carboxylic acid. Includes a method for the separation of essentially pure cis- and trans-isomers from the mixed nitriles. The products are useful intermediates for the preparation of pyrethroid insecticides.
Inventors:
ROBAATO JIYOSEFU RINDOZEI
IAN FUAAGASUN
ARAN TOOMASU KOSUTERO
IAN FUAAGASUN
ARAN TOOMASU KOSUTERO
Application Number:
JP13882577A
Publication Date:
July 08, 1978
Filing Date:
November 18, 1977
Export Citation:
Assignee:
ICI LTD
International Classes:
C07C69/743; B01J27/02; B01J27/08; B01J31/00; B01J31/04; C07B61/00; C07C51/00; C07C51/08; C07C51/09; C07C61/40; C07C67/00; C07C67/22; C07C69/74; C07C253/00; C07C255/48; C07C; (IPC1-7): B01J27/02; B01J27/08; B01J31/04; C07C51/08; C07C61/18; C07C67/22; C07C69/74; C07C121/46