| 发明名称 |
Process for transesterifying alpha-ketocarboxylic esters. |
| 摘要 |
Transesterification of alpha -ketocarboxylic acid esters with alcohols uses water-free alcohol as the reaction medium in the presence of tin, titanium, zirconium or lithium catalysts or acetyl acetonate catalysts. |
| 申请公布号 |
ZA9905057(B) |
申请公布日期 |
2000.02.08 |
| 申请号 |
ZA19990005057 |
申请日期 |
1999.08.06 |
| 申请人 |
DSM FINE CHEMICALS AUSTRIA GMBH. |
发明人 |
CURT ZIMMERMANN;JOHANN FRIEDHUBER |
| 分类号 |
C07C67/02;C07C67/03;C07C69/716;C07C69/738 |
主分类号 |
C07C67/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
