Chiral bisimidazolium salts derived from amino acids and their palladium(II)- and platinum(II)-biscarbene complexes

被引：34

作者：

Meyer, Anke ^{[1
]}

Taige, Maria A. ^{[1
]}

Strassner, Thomas ^{[1
]}

机构：

[1] Tech Univ Dresden, D-01062 Dresden, Germany

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2009年 / 694卷 / 12期

关键词：

Chiral bisimidazolium salts; Amino acids; N-heterocyclic carbene metal complexes; Palladium; Platinum; Solid state structure; N-HETEROCYCLIC CARBENES; METAL-COMPLEXES; STEREODIRECTING LIGANDS; STRUCTURAL-CHARACTERIZATION; ASYMMETRIC HYDROGENATION; BISCARBENE COMPLEXES; CATALYZED REACTIONS; CONJUGATE ADDITION; IONIC LIQUIDS; METHANE;

D O I：

10.1016/j.jorganchem.2009.01.036

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

We report new chiral bisimidazolium salts synthesized from naturally occurring L-amino acids. They served as precursors for bidentate N-heterocyclic carbene metal complexes. The chiral imidazoles could be synthesized in good yields via a one-pot ring closing reaction, followed by esterification. The methylene bridged bisimidazolium iodide salts are accessible in moderate yields. Corresponding palladium(II) and platinum(II)-NHC complexes could be synthesized and fully characterized, but do not show optical activity. We also report a solid state structure of one of the synthesized palladium(II) biscarbene compounds derived from alanine. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1861 / 1868

页数：8

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