The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 13, 1979
Filed:
Aug. 19, 1977
Applicant:
Inventors:
Fujio Masuko, Ibaraki, JP;
Kazuhiko Fujiyoshi, Toyonaka, JP;
Yoshitaka Ume, Toyonaka, JP;
Shinji Nakai, Minoo, JP;
Shigeyoshi Kitamura, Toyonaka, JP;
Takeaki Umemura, Takarazuka, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2604 / ;
Abstract
A process for producing 3-methyl-2-(4-halophenyl)butyronitrile, which is an important intermediate for the production of insecticides, in a high yield and a high purity even on a commercial scale comprising reacting a p-halophenylacetonitrile having a p-halobenzyl alcohol content of not more than 1.0 % by weight, with an isopropyl halide having an isopropyl alcohol content of not more than 1.0 % by weight.