| 发明名称 |
Process for the preparation of arylhydantoins |
| 摘要 |
Process for the preparation of 5-arylhydantoins by reaction of an allantoin acid alkyl ester with an aryl compound in a concentrated inorganic acid at temperatures from room temperature to 150 DEG C., with or without a phase transfer agent.
|
| 申请公布号 |
US5436256(A) |
申请公布日期 |
1995.07.25 |
| 申请号 |
US19930157407 |
申请日期 |
1993.11.26 |
| 申请人 |
CHEMIE LINZ GESELLSCHAFT M.B.H. |
发明人 |
HENDEL, WOLFRAM;KLOIMSTEIN, ENGELBERT;FITZINGER, KLAUS;VIEHBOECK, ANTONIA;HAIDINGER, KURT |
| 分类号 |
B01J31/04;C07B61/00;C07C275/16;C07D233/74;C07D233/76;C07D233/78;(IPC1-7):C07D233/74 |
主分类号 |
B01J31/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
