Chiral Ni(II) Schiff base complex-catalysed enantioselective epoxidation of prochiral non-functionalised alkenes

被引：49

作者：

Kureshy, RI ^{[1
]}

Khan, NH ^{[1
]}

Abdi, SHR ^{[1
]}

Patel, ST ^{[1
]}

Iyer, P ^{[1
]}

Suresh, E ^{[1
]}

Dastidar, P ^{[1
]}

机构：

[1] Cent Salt & Marine Chem Res Inst, Silicates & Catalysis Discipline, Bhavnagar 364002, Gujarat, India

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2000年 / 160卷 / 02期

关键词：

alkenes; asymmetric induction; epoxidation; imines; non-functionalised;

D O I：

10.1016/S1381-1169(00)00213-2

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 synthesis, characterisation and single crystal X-ray structures of square planar Ni(II) chiral Schiff base complexes with N2O2-type Ligands have been described. These catalysts were used for enantioselective epoxidation of non-functionalised alkenes viz. 1-hexene, 1-octene, styrene, 4-chloro-, 4-nitrostyrene and 1,2-dihydronaphthalene using NaOCl as oxidant, giving excellent conversions with long chain alkenes while ee's were moderate to good. A mechanism for the Ni(II)-catalysed epoxidation with NaOCl is proposed. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：217 / 227

页数：11

共 38 条

[1] ENANTIOSELECTIVE EPOXIDATION OF 2,2-DIMETHYL-2H-CHROMENES BY DIMETHYLDIOXIRANE AND JACOBSENS MN(III)SALEN CATALYSTS [J].