| 发明名称 |
METHOD FOR PRODUCING ALPHA-METHYLATED CYSTEINE AND SERINE DERIVATIVES |
| 摘要 |
The invention relates to an improved method for the production, purification and crystallisation of alpha -methylated cysteine or serine derivatives by an acid hydrolysis of corresponding thiazolidine or oxazolidine esters, with the continuous removal of the accumulating aldehyde, a prior optional conversion into a thiazolidine or oxazolidine carboxylic acid or a thiazolidine or oxazolidine carboxylate and a subsequent azeotropic distillation. |
| 申请公布号 |
WO2004092119(A3) |
申请公布日期 |
2005.03.03 |
| 申请号 |
WO2004EP03777 |
申请日期 |
2004.04.08 |
| 申请人 |
CONSORTIUM FUER ELEKTROCHEMISCHE INDUSTRIE GMBH;HELDMANN, DIETER;STOHRER, JUERGEN |
发明人 |
HELDMANN, DIETER;STOHRER, JUERGEN |
| 分类号 |
C07C227/14;C07C227/32;C07C229/22;C07C319/02;C07C323/58;C07D;C07D263/06;C07D277/06;C12P13/06;C12P13/12 |
主分类号 |
C07C227/14 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
