| 发明名称 |
Process for the manufacture of p-hydroxyphenyl-acetic acid |
| 摘要 |
p-Hydroxyphenylacetic acid is prepared by reduction of p-hydroxymandelic acid with HI in the presence of red phosphorus. According to a preferred embodiment, the reaction is carried out in one vessel in which the mandelic acid is prepared in situ from phenol and glyoxylic acid.
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| 申请公布号 |
US4590295(A) |
申请公布日期 |
1986.05.20 |
| 申请号 |
US19850726274 |
申请日期 |
1985.04.24 |
| 申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
SPIELMANN, WERNER;SCHAEFFER, GEORG |
| 分类号 |
C07C59/52;C07C51/00;C07C51/377;C07C67/00;(IPC1-7):C07C65/01 |
主分类号 |
C07C59/52 |
| 代理机构 |
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