Diphenylphosphinooxazoline ligands with a chiral binaphthyl backbone for Pd-catalyzed allylic alkylation

被引:113
作者
Imai, Y [1 ]
Zhang, WB [1 ]
Kida, T [1 ]
Nakatsuji, Y [1 ]
Ikeda, I [1 ]
机构
[1] Osaka Univ, Fac Engn, Dept Appl Chem, Suita, Osaka 565, Japan
关键词
D O I
10.1016/S0040-4039(98)00768-0
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Novel diphenylphosphinooxazoline ligands with a chiral binaphthyl backbone were prepared. It was interestingly found that the two diastereomeric ligands afforded two enantiomeric products, respectively, with excellent catalytic activities and enantioselectivities for the palladium-catalyzed allylic alkylation, regardless of the identical (S)-oxazoline ring existing in both ligands. This is the first example using an (S)-oxazoline ligand to afford an (R)-product for this reaction. (C) 1998 Elsevier Science Ltd. All rights reserved.
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页码:4343 / 4346
页数:4
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