发明名称 |
Method of preparation of 4-aminodiphenylamine |
摘要 |
A method of preparing 4-aminodiphylamine through an intermediate preparation of 4-nitrodiphenylamine and/or 4-nitrosodiphenylamine and/or their salts by reaction of aniline with nitobenzene in a liquid medium at a temperature of 50 to 130° C., under normal or reduced pressure, in an inert atmosphere or in the presence of air oxygen, with subsequent hydrogenation of an intermediate of 4-nitrodiphenlyamine and/or nitrosodiphenylamine and side products, and by isolation of 4-aminodiphenylamine and the side products of unconverted raw materials
|
申请公布号 |
US2002045779(A1) |
申请公布日期 |
2002.04.18 |
申请号 |
US20010875881 |
申请日期 |
2001.06.08 |
申请人 |
BESKA EMANUEL;TOMAN PETER;FIEDLER KAROL;HRONEC MILAN;PINTER JOZEF |
发明人 |
BESKA EMANUEL;TOMAN PETER;FIEDLER KAROL;HRONEC MILAN;PINTER JOZEF |
分类号 |
C07B61/00;C07C209/02;C07C209/36;C07C209/38;C07C209/60;C07C209/68;C07C211/50;C07C211/52;C07C211/55;C07C211/56;(IPC1-7):C0729/36 |
主分类号 |
C07B61/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|