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. 27, 2009
Filed:
Mar. 08, 2004
Applicants:
Christine J. Bradaric-baus, Stony Creek, CA;
Yuehui Zhou, Toronto, CA;
Inventors:
Christine J. Bradaric-Baus, Stony Creek, CA;
Yuehui Zhou, Toronto, CA;
Assignee:
Cytec Canada Inc., Niagara Falls, Ontario, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F 9/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
Tertiary phosphines are prepared by reacting a phosphine (PHor a primary or secondary phosphine) with a cyclic alpha,beta-unsaturated carbonyl compound having no more than one C═C double bond conjugated with a carbonyl group. The inventive tertiary phosphines can have R groups that are the same or different. The inventive tertiary phosphines may be used as ligands for metal catalysts or as starting materials for preparing phosphonium salts or ylids.