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Novel chiral thioureas for highly enantioselective Michael reactions of malonates to nitroalkenes
被引:5
|作者:
Yan, Li Jun
[1
]
Liu, Quan Zhong
[1
]
Wang, Xue Lian
[1
]
机构:
[1] China W Normal Univ, Coll Chem & Chem Engn, Lab Appl Chem & Pollut Control Technol, Nanchang 637002, Peoples R China
关键词:
Michael addition;
Thiourea;
Enantioselectivities;
Nitroalkene and malonate;
ASYMMETRIC CATALYSIS;
CONJUGATE ADDITION;
ORGANOCATALYSIS;
NITROOLEFINS;
KETONES;
DONORS;
D O I:
10.1016/j.cclet.2008.11.021
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Highly efficient Michael addition reactions of malonates to nitroalkenes catalyzed by novel chiral thioureas derived from optically pure BINOL and amino acids are reported. Various trans-nitroalkenes reacted with malonates affording the desired products in up to 95% yield with excellent enantioselectivities (up to 97% ee). (C) 2008 Quan Zhong Liu. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
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页码:310 / 313
页数:4
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