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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).
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页码:1865 / 1869
页数:5
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