Synthesis and application of novel chiral phosphino-oxazoline ligands with 1,1′-binaphthyl skeleton

被引:112
作者
Ogasawara, M [1 ]
Yoshida, K [1 ]
Kamei, H [1 ]
Kato, K [1 ]
Uozumi, Y [1 ]
Hayashi, T [1 ]
机构
[1] Kyoto Univ, Grad Sch Sci, Dept Chem, Kyoto 6068502, Japan
基金
日本学术振兴会;
关键词
D O I
10.1016/S0957-4166(98)00136-0
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
C-1-Symmetric phosphino-oxazolines, (S,S)- and (S,R)-2-[4-(isopropyl)oxazol-2-yl]-2'-diphenylphosphino-1,1'-binaphthyl, which possess both phosphine and oxazoline moieties, were prepared from racemic binaphthol and enantiomerically pure (S)-(+)-2-amino-3-methyl-1-butanol in high yields. Reaction of 1,3-diphenyl-2-propenyl acetate with dimethyl sodiomalonate in the presence of 2 mol% of palladium catalysts bearing the new chiral ligands proceeded with high enantioselectivity to give allylic alkylation products of up to 91% ee. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.
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页码:1779 / 1787
页数:9
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