发明授权
US4748250A Diastereoselective reduction of alpha-triazolylketones to
betatriazolylcarbinols
失效
α-三唑基酮非对称选择性还原为三(三唑基甲醇)
- 专利标题: Diastereoselective reduction of alpha-triazolylketones to betatriazolylcarbinols
- 专利标题(中): α-三唑基酮非对称选择性还原为三(三唑基甲醇)
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申请号: US729951申请日: 1985-05-02
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公开(公告)号: US4748250A公开(公告)日: 1988-05-31
- 发明人: Peter C. Thieme , Hubert Sauter , Gernot Reissenweber
- 申请人: Peter C. Thieme , Hubert Sauter , Gernot Reissenweber
- 申请人地址: DEX Ludwigshafen
- 专利权人: BASF Aktiengesellschaft
- 当前专利权人: BASF Aktiengesellschaft
- 当前专利权人地址: DEX Ludwigshafen
- 优先权: DEX3416444 19840504; DEX3442657 19841123
- 主分类号: C07D249/08
- IPC分类号: C07D249/08 ; C07D521/00
摘要:
Sterically pure .beta.-triazolyl carbinols of the general structure ##STR1## where R is not hydrogen, in particular the R*, S*-diastereomer, are obtained by diastereoselective reduction of the corresponding .alpha.-triazolylketone with a complex hydride which reduces ketones to alcohols, in the presence of a Lewis acid in a non-polar solvent.
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