N-pyrrolyl phosphines: Enhanced pi-acceptor character via carboalkoxy substitution

被引：33

作者：

Huang, A

Marcone, JE

Mason, KL

Marshall, WJ

Moloy, KG

Serron, S

Nolan, SP

机构：

[1] DUPONT CO INC,EXPT STN,CENT RES & DEV,WILMINGTON,DE 19880

[2] UNIV NEW ORLEANS,DEPT CHEM,NEW ORLEANS,LA 70148

来源：

ORGANOMETALLICS | 1997年 / 16卷 / 15期

关键词：

D O I：

10.1021/om970129q

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A series of 3,4-dicarboethoxy-N-pyrrolyl phosphine ligands (R2P-NC4H2(CO2Et)(2)) is described. A number of techniques, including reaction calorimetry, infrared spectroscopy, and X-ray crystallography, demonstrate that these ligands are potent pi-acceptors and that the electronic substituent parameter chi(i) for the 3,4-(EtO2C)(2)C4H2N moiety is ca. 16, placing it in a position between fluorine and chlorine.

引用

页码：3377 / 3380

页数：4

共 27 条

[1]

ALYEA EC, 1982, ADV CHEM SERIES, V196

[2] SOLID-STATE STRUCTURE AND REACTIVITY IN SOLUTION .8. IMPLICATIONS OF THE STRUCTURE OF [1,2-BIS(DIPHENYLPHOSPHINO)ETHANE]TETRA-CARBONYLMOLYBDENUM(0) TO THE CHELATE EFFECT [J].