| 发明名称 |
PROCESS FOR THE PREPARATION OF SYMMETRIC FORM N,N'-SUBSTITUTE AROMATIC UREA |
| 摘要 |
Aromatic urea of formula (I) is prepared by reacting aromatic mono nitro compound, aromatic primary amine and synthetic gas of H2/CO with a ratio of 0.2-2 atms and at 5-100 in the presence of a palladium catalyst and halogen-containing ammonium salt or phosphonium salt in a nonpolar solvent 50-200deg.C.
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| 申请公布号 |
KR960009117(B1) |
申请公布日期 |
1996.07.13 |
| 申请号 |
KR19910010513 |
申请日期 |
1991.06.24 |
| 申请人 |
LG CHEMICAL CO., LTD. |
发明人 |
LEE, SANG - MOO;OH, JAE - SEUNG |
| 分类号 |
B01J31/18;C07B61/00;C07C273/18;C07C275/28;C07C275/30;C07C275/34;(IPC1-7):C07C275/30 |
主分类号 |
B01J31/18 |
| 代理机构 |
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