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Epiandrosterone-derived prolinamide as an efficient asymmetric catalyst for Michael addition reactions of aldehydes to nitroalkenes
被引:17
|作者:
Wang, Yongchao
[1
]
Ji, Shen
[1
]
Wei, Kun
[1
]
Lin, Jun
[1
]
机构:
[1] Yunnan Univ, Sch Chem Sci & Technol, Minist Educ, Key Lab Med Chem Nat Resource, Kunming 650091, Peoples R China
来源:
关键词:
DOMINO REACTIONS;
SILYL ETHERS;
ORGANOCATALYSTS;
CONSTRUCTION;
KETONES;
DERIVATIVES;
CASCADE;
ACID;
D O I:
10.1039/c4ra03075c
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Epiandrosterone derivatives-organocatalyzed asymmetric Michael addition of aldehydes to nitroalkenes was investigated. Among the various catalysts, a novel type of epiandrosterone-derived L-prolineamide catalyst was synthesized and exhibited better performance in both catalytic activity and stereoselectivity, providing the products with high yields (up to 98%), excellent enantioselectivities (up to 99% ee) and diastereoselectivities (up to 99 : 1 dr), and low catalyst loading (5 mol%).
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页码:30850 / 30856
页数:7
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