Chiral catalysts for enantioselective intermolecular cyclopropanation reactions with methyl phenyldiazoacetate. Origin of the solvent effect in reactions catalyzed by homochiral dirhodium(II) prolinates

被引:92
作者
Doyle, MP [1 ]
Zhou, QL [1 ]
Charnsangavej, C [1 ]
Longoria, MA [1 ]
McKervey, MA [1 ]
Garcia, CF [1 ]
机构
[1] QUEENS UNIV BELFAST,SCH CHEM,BELFAST BT9 5AG,ANTRIM,NORTH IRELAND
关键词
D O I
10.1016/0040-4039(96)00822-2
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The highest levels of enantiocontrol in intermolecular cyclopropanation reactions of methylphenyldiazoacetate have been achieved with homochiral dirhodium(II) prolinates in pentane, the solvent effect for which (0.8 +/- 0.2 kcal/mol) is associated with ligand alignment. (C) 1996 Elsevier Science Ltd
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收藏
页码:4129 / 4132
页数:4
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