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. 12, 2004
Filed:
Nov. 27, 2002
G. K. Surya Prakash, Hacienda Heights, CA (US);
Jinbo Hu, Los Angeles, CA (US);
George A. Olah, Beverly Hills, CA (US);
University of Southern California, Los Angeles, CA (US);
Abstract
An efficient method is disclosed for the preparation of trifluoromethyl- and difluoromethylsilanes using magnesium metal mediated reductive tri- and difluoromethylation of chlorosilanes with tri- and difluoromethyl sulfides, sulfoxides, and sulfones. One byproduct of the process is diphenyl disulfide. Since phenyl trifluoromethyl sulfone, sulfoxide and sulfide are readily prepared from readily available trifluoromethane and diphenyl disulfide, the method can be considered “pseudo-catalytic” for the preparation of (trifluoromethyl)trimethylsilane from environmentally benign trifluoromethane.