发明授权
- 专利标题： One-step synthesis of vitamin-C (L-ascorbic acid)
- 专利标题（中）： 一维合成维生素C（L-抗坏血酸）
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申请号： US270194申请日： 1999-03-15
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公开(公告)号： US5998634A公开(公告)日： 1999-12-07
- 发明人: Andrew P. Murphy , Lisa Renee Henthorne
- 申请人： Andrew P. Murphy , Lisa Renee Henthorne
- 申请人地址： DC Washington
- 专利权人： The United States of America as represented by the Secretary of the Interior
- 当前专利权人： The United States of America as represented by the Secretary of the Interior
- 当前专利权人地址： DC Washington
- 主分类号： C07D307/62
- IPC分类号： C07D307/62
摘要：
A method is provided for producing L-ascorbic acid (Vitamin-C) in a single process step. Starting material, particularly a mixture of compounds from the group consisting of glucose, sorbitol, sorbose, and 2-keto-L-gulonic acid, is catalytically oxidized in aqueous solution by hypochlorous acid. L-ascorbic acid then can be separated from the aqueous solution, and the unconverted reactants recycled for greater conversion. The reaction occurs in the aqueous state at ambient temperature near a pH of 5.5 when an optimum amount of hydrous cobalt-oxide is present in the solution.
公开/授权文献
- USD269721S Pharmaceutical tablet 公开/授权日：1983-07-12
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