发明名称 |
Process for preparing a triarylamine dimer |
摘要 |
The present invention intends to provide a simple process for preparing a triarylamine dimer without using any expensive chemicals, the process being able to achieve high reaction yield and being advantageous to be carried out on an industrial scale. The present invention provides a process for preparing a triarylamine dimer (I) using the Ullmann reaction represented by the scheme: <CHEM> wherein X represents a halogen atom, R<1> and R<2> represent independently a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom, Ar represents a phenylene group, or a naphthylene group, characterized in that the reaction accelerator is polyethylene glycol or di- or monoalkyl ether of polyethylene glycol. |
申请公布号 |
EP1018505(A3) |
申请公布日期 |
2000.09.13 |
申请号 |
EP20000100131 |
申请日期 |
2000.01.07 |
申请人 |
ORIENT CHEMICAL INDUSTRIES, LTD. |
发明人 |
YAMASAKI, YASUHIRO;KURODA, KAZUYOSHI |
分类号 |
C07C209/10;C07C211/54;C07C211/55;C07C211/58;G03G5/06;H01L51/50 |
主分类号 |
C07C209/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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