发明名称 |
PROCESS FOR THE PREPARATION OF 3,4-METHYLENEDIOXY-MANDELIC ACID |
摘要 |
<p>Disclosed is a process for preparing 3,4-methylenedioxymandelic acid by reacting 1,2-methylenedioxybenzene with glyoxylic acid in the presence of a strong acid, characterized in that the reaction is carried out in the presence of at least one selected from the group consisting of an aprotic organic solvent and 100 to 1200 ml of an organic acid per kg of 1,2-methylenedioxybenzene.</p> |
申请公布号 |
EP1229031(A1) |
申请公布日期 |
2002.08.07 |
申请号 |
EP20000966457 |
申请日期 |
2000.10.13 |
申请人 |
UBE INDUSTRIES, LTD. |
发明人 |
HARADA, KATSUMASA;SHIRAI, MASASHI;SHIBA, KOJI |
分类号 |
C07D317/60;(IPC1-7):C07D317/60 |
主分类号 |
C07D317/60 |
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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