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:
Apr. 08, 1986
Filed:
May. 17, 1985
Applicant:
Inventor:
Robert I Davidson, Baton Rouge, LA (US);
Assignee:
Ethyl Corporation, Richmond, VA (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
558341 ; 558345 ;
Abstract
An alpha-arylacrylonitrile is prepared by reacting an aryl ketone having a removable hydrogen alpha to the carbonyl group with a cyanide ion source which is free of radicals that would stabilize a cyanohydrin corresponding to the aryl ketone and with a Lewis acid in the presence of an activating amount of water and/or HCl and preferably in the presence of a solvent. In a preferred embodiment, the aryl ketone is a tetralone, the cyanide ion source is sodium cyanide, the Lewis acid is aluminum chloride, and the product is a 1-cyano-3,4-dihydronaphthalene.