发明名称 |
AQUEOUS PROCESS FOR PREPARING AMIDO-CARBOXYLIC ACIDS |
摘要 |
<p>This invention relates to a process for preparing amido-carboxylic acids in water wherein hydrolysis and amidation reactions are conducted simultaneously in a single vessel. The process involves three steps. The first step involves heating at a temperature of 150 DEG C-300 DEG C for 2 to 10 hours, a mixture containing water, a nitrogen containing compound selected from the group consisting of a lactam and an amino acid, and a carboxylic acid or ester. The second step involves cooling the reaction mixture to obtain a two-phase system containing an aqueous layer and an organic layer. The third step involves separating the amido-carboxylic acid containing organic layer from the aqueous layer. The presence of water aids in product isolation by phase separation and recycle of the reactants. Amido-carboxylic acids are used to make bleach activators for detergents.</p> |
申请公布号 |
WO9528382(A1) |
申请公布日期 |
1995.10.26 |
申请号 |
WO1995US04345 |
申请日期 |
1995.04.07 |
申请人 |
EASTMAN CHEMICAL COMPANY |
发明人 |
ZIMA, GEORGE, CHESTER;WILLIAMS, THOMAS, HUGH;LUTZ, GARY, PAUL;DICKASON, WILLIAM, CHARLES |
分类号 |
C07C231/02;C07C231/08;C07C231/14;C07C233/46;C07C233/47;(IPC1-7):C07C231/08 |
主分类号 |
C07C231/02 |
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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