Organocatalytic Enantioselective Synthesis of 6-Aryl-5,6-dihydrophenanthridines by a Modified Pictet-Spengler Reaction of Biphenyl-2-amines and Aromatic Aldehydes

被引:12
|
作者
Wang, Chaoceng [1 ]
An, Dong [1 ]
Guan, Xukai [1 ]
Fan, Yansen [1 ]
Liu, Guofeng [1 ]
Zhang, Guangliang [1 ]
Zhang, Suoqin [1 ]
机构
[1] Jilin Univ, Coll Chem, Changchun 130012, Peoples R China
基金
中国国家自然科学基金;
关键词
Asymmetric synthesis; Enantioselectivity; Fusedring systems; Nitrogen heterocycles; Organocatalysis; AXIALLY CHIRAL BISPHOSPHORYLIMIDES; FRIEDEL-CRAFTS REACTIONS; BRONSTED ACIDS; BENZOPHENANTHRIDINE ALKALOIDS; CYCLIZATION REACTIONS; ZANTHOXYLUM-NITIDUM; DERIVATIVES; DIHYDROCHELERYTHRINE; ARYLATION; PATHWAY;
D O I
10.1002/ejoc.201700185
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A straightforward approach to the enantioselective synthesis of chiral 5,6-dihydrophenanthridines was developed. A series of chiral 6-aryl-5,6-dihydrophenanthridines were obtained through an organocatalytically modified Pictet-Spengler reaction of biphenyl-2-amines and aromatic aldehydes. In the reaction, H-8-BINOL-derived chiral imidodiphosphoric acid exhibited strong stereocontrolling and catalytic activities to afford the desired 6-aryl-5,6-dihydrophenanthridines in high yields (up to 98 %) with high enantioselectivities (up to 99 % ee).
引用
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页码:1865 / 1869
页数:5
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