发明授权
US4994585A Method of preparing (S)-.gamma.-hydroxymethyl-.alpha., .beta.-butenolide
失效
制备（S）-γ-羟甲基-α，β-丁烯内酯的方法
- 专利标题： Method of preparing (S)-.gamma.-hydroxymethyl-.alpha., .beta.-butenolide
- 专利标题（中）： 制备（S）-γ-羟甲基-α，β-丁烯内酯的方法
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申请号： US550509申请日： 1990-07-10
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公开(公告)号： US4994585A公开(公告)日： 1991-02-19
- 发明人: Koshi Koseki , Takashi Ebata , Hiroshi Kawakami , Hajime Matsushita , Kazuo Itoh , Yoshitake Naoi
- 申请人： Koshi Koseki , Takashi Ebata , Hiroshi Kawakami , Hajime Matsushita , Kazuo Itoh , Yoshitake Naoi
- 申请人地址： JPX Tokyo JPX Tokyo
- 专利权人： Japan Tabacco Inc.,Yuki Gosei Kogyo Co., Ltd.
- 当前专利权人： Japan Tabacco Inc.,Yuki Gosei Kogyo Co., Ltd.
- 当前专利权人地址： JPX Tokyo JPX Tokyo
- 优先权： JPX1-184817 19890719
- 主分类号： C07D307/58
- IPC分类号： C07D307/58
摘要：
A method of preparing (S)-.gamma.-hydroxymethyl-.alpha.,.beta.-butenolide includes the step of oxidizing a levoglucosenone with a peracid in an organic solvent. Peracetic acid, metha-chloroperbenzoic acid or magnesium monoperoxyphthalate hexahydrate can be used as the peracid. According to this method, an (S)-.gamma.-hydroxymethyl-.alpha.,.beta.-butenolide having high optical purity can be easily prepared from a levoglucosenone as a starting material at a high yield.
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