共 41 条
Catalytic asymmetric reductive Michael cyclization
被引:337
作者:
Yang, JW
[1
]
Fonseca, MTH
[1
]
List, B
[1
]
机构:
[1] Max Planck Inst Kohlenforsch, D-45470 Mulheim, Germany
关键词:
D O I:
10.1021/ja055735o
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
A highly efficient and chemo-, regio-, diastereo-, and enantioselective organocatalytic tandem conjugate reduction-Michael cyclization of enal enones has been developed. Accordingly, treating the enal enone with a Hantzsch dihydropyridine in the presence of a catalytic amount of an imidazolidinone organocatalyst provides cyclic keto aldehydes in high yields and enantiomeric excesses. The reaction works well with aliphatic and aromatic substrates in the synthesis of five- and six-membered carbacyclic derivatives. Copyright © 2005 American Chemical Society.
引用
收藏
页码:15036 / 15037
页数:2
相关论文