发明名称 |
MANUFACTURE OF ASCORBYL MONOPHOSPHATES |
摘要 |
Preparation of alkali metal and alkaline earth metal salts of L-ascorbic acid-2-monophosphate of formula (I) comprises reacting L-ascorbic acid-2-polyphosphate compounds (II) with an alkali or alkaline earth metal salt of L-ascorbic acid (III) in the presence of an alkaline earth metal hydroxide in concentrated aqueous solution. The amount of (III) and base is chosen to give a pH of 8-11. The reaction involves a step-wise transfer of each phosphate group (-P(=O)(O<->M<+>)-O-) from (II) to (III). M<+> = an alkali metal ion or an equivalent of an alkaline earth ion; n = 2 or more. |
申请公布号 |
HK1016183(A1) |
申请公布日期 |
2002.08.16 |
申请号 |
HK19990101164 |
申请日期 |
1999.03.23 |
申请人 |
F. HOFFMANN-LA ROCHE AG |
发明人 |
DLUBALA, ALAIN;NOESBERGER, PAUL |
分类号 |
A23L33/15;C07F9/655 |
主分类号 |
A23L33/15 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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