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Asymmetric Cascade Assembly of 1,2-Diaza-1,3-dienes and α,β-Unsaturated Aldehydes via Dienamine Activation
被引:35
|作者:
Ran, Guang-Yao
[1
]
Gong, Ming
[2
]
Yue, Jing-Fei
[1
]
Yang, Xing-Xing
[1
]
Zhou, Su-Lan
[1
]
Du, Wei
[1
]
Chen, Ying-Chun
[1
]
机构:
[1] Sichuan Univ, West China Sch Pharm, Dept Med Chem, Chengdu 610041, Peoples R China
[2] Ruian City Peoples Hosp, Ruian 325200, Zhejiang, Peoples R China
关键词:
ONE-POT SYNTHESIS;
COPPER(I)-CATALYZED INTRAMOLECULAR AMINATION;
DIPEPTIDYL-PEPTIDASE-IV;
II RECEPTOR ANTAGONISTS;
DIELS-ALDER REACTIONS;
QUATERNARY STEREOCENTERS;
PYRROLIZIDINE ALKALOIDS;
NITROGEN-HETEROCYCLES;
AZOMETHINE YLIDES;
MICHAEL ADDITION;
D O I:
10.1021/acs.orglett.7b00636
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
A cascade vinylogous 1,6-Michael addition/1,4-proton shift/aza-Michael addition/hemiaminal formation sequence of 1,2-diaza-1,3-dienes and beta-substituted 2-butenals has been developed under the influence of dienamine activation of a chiral secondary amine. This method exhibits high regio- and chemoselectivity and provides an efficient and straightforward approach to bicyclic l,8-diazabicyclo[3.3.0]octane skeletons with a tetrasubstituted stereogenic center with fair to excellent enantioselectivity.
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页码:1874 / 1877
页数:4
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