发明名称 |
Process for the preparation of substituted hydroxyhydrocinnamate esters |
摘要 |
The transesterification of substituted lower alkyl hydroxyhydrocinnamates with a higher alcohol or a polyol is greatly facilitated by the use of a trace amount of a tin catalyst. In many cases, the amount of the catalyst is so small that it is unnecessary to remove it from the final product by distillation of said product.
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申请公布号 |
US5892097(A) |
申请公布日期 |
1999.04.06 |
申请号 |
US19970862034 |
申请日期 |
1997.05.22 |
申请人 |
CIBA SPECIALTY CHEMICALS CORPORATION |
发明人 |
ROSS, JOHN R.;SCHULTZ, MICHAEL E.;DUBUIS, BENOIT;KUENG, PETER |
分类号 |
B01J31/12;C07B61/00;C07C67/03;C07C69/732;C07C319/20;C07C323/12;(IPC1-7):C07C69/76 |
主分类号 |
B01J31/12 |
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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