发明名称 |
Process for producing propionic acid derivatives |
摘要 |
A process for producing a 2-aralkyl-3-hydroxypropionic acid (or its ester), comprising the steps of: reacting a 3-hydroxy-2-methylene-3-arylpropionic acid ester, easily obtained by the reaction of an arylaldehyde with an acrylic acid ester, with an acid anhydride to form a 2-aralkylidene-3-acyloxypropionic acid ester; subjecting the same to hydrolysis or alcoholysis; and reducing the resulting 2-aralkylidene-3-hydroxypropionic acid or its ester. The reduction step may be conducted in the presence of a base.
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申请公布号 |
US6242635(B1) |
申请公布日期 |
2001.06.05 |
申请号 |
US19980156900 |
申请日期 |
1998.09.18 |
申请人 |
AJINOMOTO CO., INC. |
发明人 |
SUZUKI TAKAYUKI;HAMADA TAKAYUKI;IZAWA KUNISUKE |
分类号 |
B01J23/04;C07B61/00;C07C51/09;C07C51/36;C07C51/367;C07C59/48;C07C67/303;C07C67/31;C07C67/333;C07C67/343;C07C69/732;(IPC1-7):C07C67/00;C07C69/612;C07C69/66 |
主分类号 |
B01J23/04 |
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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