Catalytic asymmetric coupling of 2-naphthols by chiral tridentate oxovanadium(IV) complexes

被引：182

作者：

Hon, SW

Li, CH

Kuo, JH

Barhate, NB

Liu, YH

Wang, Y

Chen, CT ^{[1
]}

机构：

[1] Natl Taiwan Normal Univ, Dept Chem, Taipei, Taiwan

[2] Natl Taiwan Univ, Coll Sci, Instrumentat Ctr, Taipei 10764, Taiwan

来源：

ORGANIC LETTERS | 2001年 / 3卷 / 06期

关键词：

D O I：

10.1021/ol015505o

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

[GRAPHICS] A series of chiral oxovanadium(IV) complexes derived from tridentate N3,5-substituted and N-3,4-benzo- and N-5,6-benzo-salicylidene-alpha -amino acids can serve as efficient catalysts for the enantioselective oxidative couplings of various 3-, 6-, and 7-substituted 2-naphthols under O-2 The best scenario involves the use of a vanadyl complex arising from 2-hydroxy-1-naphthaldehyde and valine (or phenylalanine) in CCl4, leading to BINOLs in good yields (75-100%) and with enantioselectivities of up to 68%.

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页码：869 / 872

页数：4

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