| 发明名称 |
PROCESS FOR THE PRODUCTION OF 3-OXOCARBOXYLIC ACID ESTERS |
| 摘要 |
3-Oxocarboxylic acid esters are produced by acylation of the magnesium enolates of acetoacetic acid esters with carboxylic acid chlorides and cleavage of the acetyl group from the acylacetoacetic acid esters formed as the intermediate product. The yields and purity of the products are considerably improved by adding a tertiary amine during the acylation. LP 1490 25
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| 申请公布号 |
CA2053487(A1) |
申请公布日期 |
1992.04.16 |
| 申请号 |
CA19912053487 |
申请日期 |
1991.10.15 |
| 申请人 |
LONZA LTD., |
发明人 |
EYER, MARTIN |
| 分类号 |
C07C67/333;C07C67/343;C07C69/716;C07C69/738;C07C323/52;C07D213/46;C07D307/46;C07D333/22;(IPC1-7):C07C67/343;C07D207/08;C07D307/16;C07D209/18;C07D333/24;C07D211/34;C07C323/50;C07D213/55 |
主分类号 |
C07C67/333 |
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