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:
May. 22, 2012
Filed:
Jun. 22, 2007
Norihiko Fukatsu, Omuta, JP;
Hiroyuki Morijiri, Yokohama, JP;
Chitoshi Shimakawa, Arao, JP;
Koichi Tokunaga, Chikugo, JP;
Seiichi Kobayashi, Omuta, JP;
Norihiko Fukatsu, Omuta, JP;
Hiroyuki Morijiri, Yokohama, JP;
Chitoshi Shimakawa, Arao, JP;
Koichi Tokunaga, Chikugo, JP;
Seiichi Kobayashi, Omuta, JP;
Mitsui Chemicals, Inc., Minato-Ku, Tokyo, JP;
Abstract
The present invention is to provide a process for producing dicyanonorbornane characterized by causing hydrogen cyanide to undergo addition reaction with cyanonorbornene (bicyclo[2.2.1]-5-heptene-2-carbonitrile) in the presence of a zerovalent nickel complex catalyst which is produced by using a phosphite represented by P(x)(y)(z) (wherein P is a phosphorus atom, and x, y and z are each OR, where R represents an aryl group having not more than 18 carbon atoms) as a ligand to reduce a nickel halide with at least one metal selected among zinc, cadmium, beryllium, aluminum, iron and cobalt, wherein the phosphite is one which has a phosphate content of 1.0 weight % or lower based on the whole phosphite.