| 发明名称 |
Processes for producing alpha-cyanohydrin esters and alpha-hydroxy acids |
| 摘要 |
<p>The present invention relates to a process for the preparation of compounds of formula (4) wherein a carbonyl compound of the formula (3) is reacted in the presence of a cyanogenation agent with an enol ester of the formula (1) or with an oxime ester of the formula (2): <CHEM> wherein R<1> through R<8> have meanings given in the application. The compound of formula (4) can be hydrolysed to obtain the corresponding compound of formula (5): <CHEM></p> |
| 申请公布号 |
EP0926134(A2) |
申请公布日期 |
1999.06.30 |
| 申请号 |
EP19980123461 |
申请日期 |
1998.12.11 |
| 申请人 |
DAICEL CHEMICAL INDUSTRIES, LTD. |
发明人 |
ISHII, YASUTAKA;NAKANO, TATSUYA |
| 分类号 |
B01J27/10;B01J27/122;B01J27/125;B01J27/128;B01J27/132;B01J27/135;B01J31/22;C07B61/00;C07C51/08;C07C59/01;C07C59/48;C07C253/00;C07C253/16;C07C255/14;C07C255/16;(IPC1-7):C07C253/08 |
主分类号 |
B01J27/10 |
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