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. 30, 1999
Filed:
Aug. 26, 1997
Applicant:
Inventors:
Assignee:
North Dakota State University, Fargo, ND (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 86 ; 528 97 ; 528125 ; 528127 ; 528138 ; 528225 ; 528230 ; 528234 ; 528480 ; 528495 ; 528503 ;
Abstract
An organozinc species, useful in the reactions of aldehydes and ketones, is a reaction product of a) a biphenyl compound having one or more hindered 2,2'-substituted biphenyl subunits and b) an organozinc compound, such as diethylzinc. The organozinc species catalyzes the reduction of a ketone by a borane, as well as the epoxidation of .alpha.,.beta.-unsaturated compounds by an oxidizing agent, such as O.sub.2 or an alkyl hydroperoxide. The biphenyl compound may be chiral and may catalyze the formation of optically active reaction products.