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. 10, 2006
Filed:
Mar. 22, 2005
G. K. Surya Prakash, Hacienda Heights, CA (US);
Jinbo HU, Shanghai, CN;
George A. Olah, Beverly Hills, CA (US);
Ying Wang, Los Angeles, CA (US);
G. K. Surya Prakash, Hacienda Heights, CA (US);
Jinbo Hu, Shanghai, CN;
George A. Olah, Beverly Hills, CA (US);
Ying Wang, Los Angeles, CA (US);
University of Southern California, Los Angeles, CA (US);
Abstract
(Benzenesulfonyl)difluoromethyl anion, in situ generated from difluoromethyl phenyl sulfone and a base, was found to easily undergo nucleophilic substitution reactions (S2) with primary alkyl halides, elemental halogens, and perfluoroalkyl halides with good selectivity. The formed (benzenesufonyl)difluoromethylalkanes are useful intermediates for the facile preparation of 1,1-difluoro-1-alkenes and difluoromethylalkanes. Thus, difluoromethyl phenyl sulfone acts as both 'CF═' and 'CFH' synthons