发明授权
- 专利标题: Process for producing optically active alcohol containing phenyl group
- 专利标题(中): 含苯基的光学活性醇的方法
-
申请号: US529071申请日: 1995-09-15
-
公开(公告)号: US5600027A公开(公告)日: 1997-02-04
- 发明人: Junko Suzuki , Satoshi Negishi , Seiichi Shirasawa , Yukie Masuda
- 申请人: Junko Suzuki , Satoshi Negishi , Seiichi Shirasawa , Yukie Masuda
- 申请人地址: JPX Tokyo
- 专利权人: The Nisshin Oil Mills, Ltd.
- 当前专利权人: The Nisshin Oil Mills, Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX6-317695 19941129; JPX6-317696 19941129; JPX6-317697 19941129; JPX6-317698 19941129
- 主分类号: C12P7/62
- IPC分类号: C12P7/62 ; C12P41/00 ; C07C29/74
摘要:
A process for producing an optically active alcohol having a phenyl group is disclosed, comprising the step of carrying out interesterification between (a) a monoester between a racemic alcohol having a phenyl group and a fatty acid or a diester between a racemic alcohol having a phenyl group and a dibasic acid and (b) an optically inactive non-racemic alcohol having 16 or more carbon atoms in the presence of heat-resistant lipase and in the absence of a solvent under a substantially water-free condition at a temperature of not lower than 81.degree. C. under atmospheric pressure or reduced pressure and the step of separating an optically active alcohol having a phenyl group rich in either one of R- and S-forms from the reaction mixture. Use of heat-resistant lipase makes it possible to use high-melting point materials without using any solvent therefor and to perform interesterification at a high temperature thereby completing the reaction in a reduced time. Further, use of a high-melting point and high-boiling point starting material makes it possible to separate an optically active alcohol from the reaction mixture with high purity in high yield by means of a simple purification step taking advantage of a difference in physical properties.
公开/授权文献
信息查询