Enhanced diastereoselectivity of an ene hydroperoxidation reaction by confinement within zeolite Na-Y; a stereoisotopic study

被引:21
作者
Stratakis, M [1 ]
Kosmas, G [1 ]
机构
[1] Univ Crete, Dept Chem, GR-71409 Iraklion, Greece
关键词
zeolite Na-Y; ene reactions; diastereoselection;
D O I
10.1016/S0040-4039(01)01170-4
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The ene reaction of singlet oxygen with the. chiral alkene 2-methyl-5-phenyl-2-hexene in solution is not regioselective and exhibits very poor diastereoselectivity (similar to 10% d.e.). Within thionin-supported zeolite Na-Y, significant enhancement of product regioselectivity and diastereoselectivity (up to 54% d.e.) was obtained. Higher diastereoselectivity is found if the reaction occurs at the twix relative to the twin methyl group. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:6007 / 6009
页数:3
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