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:
Sep. 10, 2013
Filed:
Aug. 25, 2009
Applicants:
Xu Weiguo, Hangzhou, CN;
Hua LI, Hangzhou, CN;
Assignee:
Zhejiang Lantian Environmental Protection Hi-tech Co., Ltd., Hangzhou, Zhejiang Province, CN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C 43/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a preparation method of fluoromethyl 1,1,1,3,3,3-hexafluoroisopropyl ether by reacting CHFX with 1,1,1,3,3,3-hexafluoroisopropanol in the presence of acid-binding agent. The reaction can be also preformed in the presence of solvent and/or phase-transfer catalyst. The present method has the advantages of simple reaction, manageable control condition, high material conversion and product yield, and the product can be easily separated. The obtained fluoromethyl 1,1,1,3,3,3-hexafluoroisoprophyl ether can be used as a safe inhalation anesthetics.