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:
Apr. 01, 2014
Filed:
Jun. 19, 2012
Masayoshi Sagehashi, Joetsu, JP;
Takeru Watanabe, Joetsu, JP;
Youichi Ohsawa, Joetsu, JP;
Koji Hasegawa, Joetsu, JP;
Masaki Ohashi, Joetsu, JP;
Masayoshi Sagehashi, Joetsu, JP;
Takeru Watanabe, Joetsu, JP;
Youichi Ohsawa, Joetsu, JP;
Koji Hasegawa, Joetsu, JP;
Masaki Ohashi, Joetsu, JP;
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Abstract
A 2,2-bis(fluoroalkyl)oxirane (A) is prepared by reacting a fluorinated alcohol (1) with a chlorinating, brominating or sulfonylating agent under basic conditions to form an oxirane precursor (2) and subjecting the oxirane precursor to ring closure under basic conditions. Rand Rare fluoroalkyl groups, Rand Rare hydrogen or monovalent hydrocarbon groups, X is chlorine, bromine or —OSORgroup, and Ris alkyl or aryl.