Process for the preparation of .alpha.-cyanobenzyl esters
US4315868A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1980 |
| Grant date | Feb 16, 1982 |
| Priority date | — |
| Expiry date | Oct 3, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C43/225
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel esters in the form of their stereoisomers and mixtures of stereoisomers of the formula ##STR1## wherein X is selected from the group consisting of fluorine, chlorine and bromine R.sub.1 is selected from the group consisting of ##STR2## Y.sub.1 and Y.sub.2 may both be methyl and when Y.sub.1 is hydrogen, Y.sub.2 is selected from the group consisting of ##STR3## and Y.sub.3 and Y.sub.4 are individually selected from the group consisting of fluorine, bromine and chlorine or the group consisting of hydrogen and methyl, Z is selected from the group consisting of hydrogen, fluorine, chlorine, bromine, alkyl of 1 to 4 carbon atoms and alkoxy of 1 to 4 carbon atoms, and when Y.sub.2 is ##STR4## R.sub.2 is selected from the group consisting of ##STR5## A is selected from the group consisting of ##STR6## and when Y.sub.2 is -CHBr-CCl.sub.2 Br, R.sub.2 is m-phenoxy-phenyl and when R.sub.1 is R.sub.1 ' and Y.sub.2 is ##STR7## the said acid moiety may be in the cis or trans form or mixtures thereof or optically active isomeric form or racemic mixtures thereof and when R.sub.1 is R.sub.1 ", the said acid moiety is optically active isomeric form or racemic mixtures thereof and the compounds…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.