Invention Grant
US08212085B2 Method for purifying optically active 1-(2-trifluoromethylphenyl)ethanol
有权
光学活性1-（2-三氟甲基苯基）乙醇的纯化方法
- Patent Title: Method for purifying optically active 1-(2-trifluoromethylphenyl)ethanol
- Patent Title (中): 光学活性1-（2-三氟甲基苯基）乙醇的纯化方法
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Application No.: US12863121Application Date: 2009-01-20
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Publication No.: US08212085B2Publication Date: 2012-07-03
- Inventor: Akihiro Ishii , Hideyuki Tsuruta
- Applicant: Akihiro Ishii , Hideyuki Tsuruta
- 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: JP2008-024867 20080205
- International Application: PCT/JP2009/050746 WO 20090120
- International Announcement: WO2009/098935 WO 20090813
- Main IPC: C07C29/78
- IPC: C07C29/78
Abstract:
There is disclosed a purification method of an optically active 1-(2-trifluoromethylphenyl)ethanol represented by the formula [1], which includes recrystallizing the optically active 1-(2-trifluoromethylphenyl)ethanol from an aliphatic hydrocarbon solvent where * denotes an asymmetric carbon. This method makes it possible to improve the optical purity of the ethanol significantly.
Public/Granted literature
- US20110054223A1 Method for Purifying Optically Active 1-(2-Trifluoromethylphenyl)Ethanol Public/Granted day:2011-03-03
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