PALLADIUM-CATALYZED N,N'-DIPHENYLUREA SYNTHESIS FROM NITROBENZENE, ANILINE, AND CARBON-MONOXIDE .4. LIGAND EFFECTS

被引：33

作者：

LEE, CW

LEE, JS

LEE, SM

KIM, KD

CHO, NS

OH, JS

机构：

[1] POHANG INST SCI & TECHNOL,DEPT CHEM ENGN,CATALYT TECHNOL RES CTR,POB 125,POHANG,SOUTH KOREA

[2] LUCKY R & D CTR,CHEM PROC & CATALYSIS,DAEJON,SOUTH KOREA

来源：

JOURNAL OF MOLECULAR CATALYSIS | 1993年 / 81卷 / 01期

关键词：

ANILINE; CARBON MONOXIDE; DIPHENYLUREA; LIGAND EFFECTS; NITROBENZENE; PALLADIUM;

D O I：

10.1016/0304-5102(93)80019-Q

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effects of various ligands on the catalytic properties of palladium complex in the synthesis of N,N'-diphenylurea from nitrobenzene, aniline and carbon monoxide have been studied. Both the electronic and the steric properties of the ligands were found to have a profound effect. Compared to monodentate phosphines, bidentate ligands showed higher activity and promoted preferentially a path of the reaction network that involved steps in which the cis coordination of ligands to palladium was favored. The higher reaction rates were observed for those complexes with a greater electron density on palladium metal.

引用

页码：17 / 25

页数：9

共 15 条

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CENINI S, 1988, ASPECTS HOMOGENEOUS, V6, P97

[2]

CENINI S, 1991, J MOL CATAL, V64, P178

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