ENANTIOMERICALLY PURE COPPER(I) AND ZINC(II) COMPLEXES OF A NOVEL C3-SYMMETRICAL POLYPYRAZOLE LIGAND

被引：73

作者：

TOKAR, CJ ^{[1
]}

KETTLER, PB ^{[1
]}

TOLMAN, WB ^{[1
]}

机构：

[1] UNIV MINNESOTA,DEPT CHEM,MINNEAPOLIS,MN 55455

来源：

ORGANOMETALLICS | 1992年 / 11卷 / 08期

关键词：

D O I：

10.1021/om00044a001

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

We report the synthesis and characterization of the first enantiomerically pure C3-symmetric polypyrazole ligand, tris[(4S,7R)-7,8,8-trimethyl-4,5,6,7-tetrahydro-4,7-methano-2-indazolyl]phosphine oxide (OP-(camphpz)3, 2). The new optically active complexes [(eta-3-2)Cu(CH3CN)]BF4 (3), [(eta-3-2)Cu(X)] (X = Cl (4), X = O3SCF3 (5)), and [(eta-2-2)-ZnCl2] (6) were prepared. Complex 3 catalyzed the cyclopropanation of styrene with ethyl and 2,6-di-tert-butyl-4-methylphenyl diazoacetates with ee's of up to 60 %.

引用

页码：2737 / 2739

页数：3

共 38 条

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