Invention Grant
US08748672B2 2-(alkylcarbonyloxy)-1, 1-difluoroethanesulfonic acid salt and method for producing the same
有权
2-（烷基羰氧基）-1,1-二氟乙磺酸盐及其制备方法
- Patent Title: 2-(alkylcarbonyloxy)-1, 1-difluoroethanesulfonic acid salt and method for producing the same
- Patent Title (中): 2-（烷基羰氧基）-1,1-二氟乙磺酸盐及其制备方法
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Application No.: US13935647Application Date: 2013-07-05
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Publication No.: US08748672B2Publication Date: 2014-06-10
- Inventor: Yuji Hagiwara , Masashi Nagamori , Masaki Fujiwara , Jonathan Joachim Jodry , Satoru Narizuka
- Applicant: Central Glass Company, Limited
- Applicant Address: JP Ube-shi
- Assignee: Central Glass Company, Limited
- Current Assignee: Central Glass Company, Limited
- Current Assignee Address: JP Ube-shi
- Agency: Crowell & Moring LLP
- Priority: JP2007-241606 20070918; JP2008-210510 20080819
- Main IPC: C07C31/34
- IPC: C07C31/34
Abstract:
By using an organic base when a carboxylic acid bromodifluoroethyl ester is sulfinated by using a sulfinating agent, there is obtained 2-(alkylcarbonyloxy)-1,1-difluoroethanesulfinic acid ammonium salt. By oxidizing the 2-(alkylcarbonyloxy)-1,1-difluoroethanesulfinic acid ammonium salt, there is obtained 2-(alkylcarbonyloxy)-1,1-difluoroethanesulfonic acid ammonium salt. By using the 2-(alkylcarbonyloxy)-1,1-difluoroethanesulfonic acid ammonium salt as a raw material and exchanging it into an onium salt directly or through saponification/esterification, there can be obtained a 2-alkylcarbonyloxy-1,1-difluoroethanesulfonic acid onium salt.
Public/Granted literature
- US20130317250A1 2-(Alkylcarbonyloxy)-1, 1-Difluoroethanesulfonic Acid Salt and Method for Producing the Same Public/Granted day:2013-11-28
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