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A simple organocatalytic enantioselective cyclopropanation of α,β-unsaturated aldehydes
被引:167
|作者:
Rios, Ramon
[1
]
Sunden, Henrik
[1
]
Vesely, Jan
[1
]
Zhao, Gui-Ling
[1
]
Dziedzic, Pawel
[1
]
Cordova, Armando
[1
]
机构:
[1] Stockholm Univ, Arrhenius Lab, Dept Organ Chem, SE-10691 Stockholm, Sweden
关键词:
asymmetric catalysis;
cyclopropanes;
domino reactions;
halomalonates;
organocatalysis;
alpha;
beta-unsaturated aldehydes;
D O I:
10.1002/adsc.200700032
中图分类号:
O69 [应用化学];
学科分类号:
081704 ;
摘要:
A highly chemo- and enantioselective organocatalytic cyclopropanation of alpha,beta-unsaturated aldehydes with bromomalonate and 2-bromoacetoacetate esters is presented. The reaction is catalyzed by chiral amines and gives access to 2-formylcyclopropanes in high yields and up to 99% ee.
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页码:1028 / 1032
页数:5
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