| 发明名称 |
SYNTHESIS METHOD OF BIS-(4-TRIMELLITIMIDOPHENYLE) METHANE |
| 摘要 |
The process comprises reaction between trimellitic anhydride and 4,4'-diamino diphenyl methane at 130-190 deg.C in the presence of triethyl phosphite as catalyst. The imidising reaction gives azeotropic elimination of the water via xylene. Bis(4-trimellitic imido phenyl) methane is obtd., without the need for polar solvents of high boiling point and toxicity.
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| 申请公布号 |
RO100150(A2) |
申请公布日期 |
1991.03.15 |
| 申请号 |
RO19870131427 |
申请日期 |
1987.12.29 |
| 申请人 |
INSTITUTUL DE CERCETARE STIUINTIFICA SI INGINERIE TEHNOLOGICA PENTRU ELECTROTEHNICA, BUCURESTI, RO |
发明人 |
STERE E. ALEXANDRU,RO |
| 分类号 |
C07C1/00;(IPC1-7):C07C119/00 |
主分类号 |
C07C1/00 |
| 代理机构 |
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