Invention Grant
- Patent Title: Process for preparing 2,2-difluoroethanol
- Patent Title (中): 制备2,2-二氟乙醇的方法
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Application No.: US14232170Application Date: 2012-07-16
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Publication No.: US08975448B2Publication Date: 2015-03-10
- Inventor: Thomas Norbert Müller , Norbert Lui , Stefan Moczarski
- Applicant: Thomas Norbert Müller , Norbert Lui , Stefan Moczarski
- Applicant Address: DE Monheim am Rhein
- Assignee: Bayer Intellectual Property GmbH
- Current Assignee: Bayer Intellectual Property GmbH
- Current Assignee Address: DE Monheim am Rhein
- Agency: Miles & Stockbridge PC
- Priority: EP11174510 20110719
- International Application: PCT/EP2012/063898 WO 20120716
- International Announcement: WO2013/010985 WO 20130124
- Main IPC: C07C29/147
- IPC: C07C29/147 ; C07C67/11 ; C07C29/128 ; C07C67/10 ; C07C31/38

Abstract:
Process for preparing 2,2-difluoroethanol, comprising the following steps: reacting 1-chloro-2,2-difluoroethane with an alkali metal salt of formic acid or acetic acid in a suitable solvent to give the corresponding 2,2-difluoroethyl formate or 2,2-difluoroethyl acetate, and transesterifying the 2,2-difluoroethyl formate or 2,2-difluoroethyl acetate from step (i) in the presence of an alcohol and optionally of a base.
Public/Granted literature
- US20140243561A1 PROCESS FOR PREPARING 2,2-DIFLUOROETHANOL Public/Granted day:2014-08-28
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