Simultaneous dehalogenation of polychloroarenes and chlorination of HSiEt3 catalyzed by complexes of the groups 8 and 9

被引：26

作者：

Díaz, J

Esteruelas, MA ^{[1
]}

Herrero, J

Moralejo, L

Oliván, M

机构：

[1] Univ Zaragoza, CSIC, Inst Ciencia Mat Aragon, Dept Quim Inorgan, E-50009 Zaragoza, Spain

[2] Univ Cantabria, Dept Quim, E-39005 Santander, Spain

来源：

JOURNAL OF CATALYSIS | 2000年 / 195卷 / 01期

关键词：

homogeneous catalysis; polychloroarenes dehalogenation; HSiEt3; chlorination; Rh catalyst; Ru catalyst;

D O I：

10.1006/jcat.2000.2973

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 catalytic activity of the complexes FeCl2(PPh3)(2), RuHCl (PPh3)(3), RuH2(CO)(PPh3)(3), RuHCl(CO)(AsPh3)(3), RuHCl(CO) ((PPr3)-Pr-i)(2), OsHCl(CO)((PPr3)-Pr-i)(2), OsH2Cl2((PPr3)-Pr-i)(3), CoCl(PPh3)(3), RhH2Cl((PPr3)-Pr-i)(2), IrH2Cl((PPr3)-Pr-i)(2), IrCl(PPh3)(3), and IrH2(SiEt3) (COD)(PCy3) (COD = 1,5-cyclooctadiene) in the simultaneous dehalogenation of 1,2,4-trichlorobenzene and the chlorination of HSiEt3 has been studied. The 3d metal complexes and the derivative IrH2(SiEt3)(COD)(PCy3) are unactive, while the 4d and 5d metal compounds simultaneously catalyze the dehalogenation of 1,2,4-trichlorobenzene and the chlorination of HSiEt3. The osmium and iridium derivatives are less effective catalysts than the derivatives of ruthenium and rhodium and undergo deactivation. Complexes RuHCl(PPh3)(3) and RhH2Cl((PPr3)-Pr-i)(2) also catalyze the dehalogenation of 1,2-, 1,3-, and 1,4-dichlorobenzene and chlorobenzene. The dehalogenation of 1,3- and 1,4-dichlorobenzene is favored over the dehalogenation of the 1,2-isomer. (C) 2000 Academic Press.

引用

页码：187 / 192

页数：6

共 64 条

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