发明名称 |
PROCESS FOR THE PREPARATION OF 2,2-BIS(HYDROXYMETHYL)-PROPIONIC ACID PHENYLHYDRAZIDE |
摘要 |
A process for the preparation of 2,2-bis(hydroxymethyl)-propionic acid phenylhydrazide A process for the preparation of 2,2-bis(hydroxymethyl)propionic acid phenylhydrazide by reaction of a 2,2-bis(hydroxymethyl)propionic acid alkyl ester with phenylhydrazine, characterized in that said alkyl ester is 2,2-bis(hydroxymethyl)propionic acid (C4-C8-alkyl) ester which is prepared by the reaction of 2,2-bis(hydroxyrnethyl)propionic acid with C4-C8-alkanol in the presence of a catalyst and an aromatic solvent, said aromatic solvent and the unreacted C4-C8-alkanol being recovered by distillation. |
申请公布号 |
CA2014358(A1) |
申请公布日期 |
1990.10.13 |
申请号 |
CA19902014358 |
申请日期 |
1990.04.11 |
申请人 |
CIBA-GEIGY AG |
发明人 |
CASSANDRINI, PAOLO;STEGMANN, WERNER;SOVERINI, MASSIMO |
分类号 |
B01J27/02;B01J31/02;C07B61/00;C07C241/04;C07C243/28;(IPC1-7):C07C241/04 |
主分类号 |
B01J27/02 |
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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