发明名称 |
Process for preparing 4-aminodiphenylamine intermediates |
摘要 |
The invention is directed to a method of producing one or more 4-aminodiphenylamine intermediates comprising the steps of bringing an aniline or aniline derivative and nitrobenzene into reactive contact; and reacting the aniline and nitrobenzene in a confined zone at a suitable time and temperature, in the presence of a mixture comprising a strong base and a suitable phase transfer catalyst. Certain phase transfer catalysts may also function as the strong base.
|
申请公布号 |
US6395933(B1) |
申请公布日期 |
2002.05.28 |
申请号 |
US20010911058 |
申请日期 |
2001.07.23 |
申请人 |
FLEXSYS AMERICA, L.P. |
发明人 |
TRIPLETT, II RALPH DALE;RAINS ROGER KERANEN |
分类号 |
C07C209/02;C07B61/00;C07C209/36;C07C209/38;C07C209/68;C07C211/55;C07C211/56;(IPC1-7):C07C209/36 |
主分类号 |
C07C209/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|