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:
Oct. 06, 1987
Filed:
Mar. 14, 1986
Applicant:
Inventor:
David M Blum, Bergen, NJ (US);
Assignee:
American Cyanamid Company, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
568 12 ;
Abstract
An improved, simplified process for producing 10-phenyl-10H-phenoxaphosphine in a yield of about 55% comprising reacting n-butyl lithium in a nonpolar hydrocarbon with diphenyl ether in tetramethylethylenediamine and diethyl ether, adding phenyl phosphonous dichloride and then water, and recovering the final product.