发明公开
- 专利标题: VERFAHREN ZUR HERSTELLUNG VON L-ASCORBINSÄURE
- 专利标题(英): Method for producing l-ascorbic acid
- 专利标题(中): PROCESS FOR L-抗坏血酸的制备
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申请号: EP00903599.9申请日: 2000-01-21
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公开(公告)号: EP1149084A1公开(公告)日: 2001-10-31
- 发明人: FECHTEL, Ulrich , HEINZ, Wolfgang , MÜLLER, Bernd , BESCHMANN, Klaus , STOLDT, Jöran
- 申请人: MERCK PATENT GmbH
- 申请人地址: Frankfurter Strasse 250 64293 Darmstadt DE
- 专利权人: MERCK PATENT GmbH
- 当前专利权人: MERCK PATENT GmbH
- 当前专利权人地址: Frankfurter Strasse 250 64293 Darmstadt DE
- 优先权: DE19904821 19990205
- 国际公布: WO0046216 20000810
- 主分类号: C07D307/62
- IPC分类号: C07D307/62
摘要:
The invention relates to a method for producing L-ascorbic acid from 2-keto-L-gulonic acid or 2,3-4,6-diacetone-2-keto-L-gulonic acid. The reaction is carried out in the presence of water and hydrogen halide and the concentration of the hydrogen halide in water is greater than 37 wt. %.
公开/授权文献
- EP1149084B1 VERFAHREN ZUR HERSTELLUNG VON L-ASCORBINSÄURE 公开/授权日:2003-09-10
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