Chiral pyridylimidazolines: synthesis, arene ruthenium complexes and application in asymmetric catalysis

被引：68

作者：

Davenport, AJ ^{[1
]}

Davies, DL ^{[1
]}

Fawcett, J ^{[1
]}

Russell, DR ^{[1
]}

机构：

[1] Univ Leicester, Dept Chem, Leicester LE1 7RH, Leics, England

来源：

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1 | 2001年 / 13期

关键词：

D O I：

10.1039/b103175a

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Condensation of (1S,2S)-1,2-diphenylethylenediamine and 2-cyanopyridine gives the chiral pyridylimidazoline (L-1), deprotonation followed by treatment with methyl iodide gives an NMe derivative (L-2). The pyridylimidazolines react with [RuCl2(mes)](2) (mes=1,3,5-trimethylbenzene) in the presence of NaSbF6 to give [RuCl(L)(mes)][SbF6] (1,2) which have been characterised by X-ray crystallography. After treatment with AgSbF6 both complexes are enantioselective catalysts for the Diels-Alder reaction of methacrolein and cyclopentadiene.

引用

页码：1500 / 1503

页数：4

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