Disparate roles of chiral ligands and molecularly imprinted cavities in asymmetric catalysis and chiral poisoning

被引:33
作者
Koh, JH [1 ]
Larsen, AO [1 ]
White, PS [1 ]
Gagné, MR [1 ]
机构
[1] Univ N Carolina, Dept Chem, Chapel Hill, NC 27599 USA
关键词
D O I
10.1021/om010944c
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The activation of molecularly imprinted metal complexes generates Lewis acid catalysts for the ene reaction, each of which contains a chiral diphosphine ligand and a chiral BINOL-shaped cavity. Poisoning experiments with (R)- and (S)-BINAM indicate that while the chiral cavity can differentiate the chiral poisons, it is the chiral diphosphine ligand which controls the enantioselectivity of the ene product.
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页码:7 / 9
页数:3
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