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Transfer of Chirality in the Rhodium-Catalyzed Intramolecular Formal Hetero-[5+2] Cycloaddition of Vinyl Aziridines and Alkynes: Stereoselective Synthesis of Fused Azepine Derivatives
被引:100
|作者:
Feng, Jian-Jun
[1
]
Lin, Tao-Yan
[1
]
Wu, Hai-Hong
[1
]
Zhang, Junliang
[1
]
机构:
[1] E China Normal Univ, Dept Chem, Shanghai Key Lab Green Chem & Chem Proc, Shanghai 200062, Peoples R China
关键词:
INTERMOLECULAR 5+2 CYCLOADDITION;
7-MEMBERED RINGS;
REARRANGEMENT;
HETEROCYCLES;
REACTIVITY;
3-ACYLOXY-1,4-ENYNES;
VINYLCYCLOPROPANES;
ISOMERIZATION;
SELECTIVITY;
CYCLIZATION;
D O I:
10.1021/jacs.5b01305
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
By taking advantage of vinyl aziridines as a heteroatom-containing five-atom component in rhodium-catalyzed intramolecular formal hetero-[5 + 2] cycloaddition reactions with alkynes, a highly efficient method for the synthesis of fused azepine derivatives at 30 degrees C was developed. The reaction has broad substrate scope and tolerates a wide range of functional groups. The chirality of vinyl aziridine-alkyne substrates can be completely transferred to the cycloadducts, representing an atom-economic and enantiospecific protocol for the construction of fused 2,5-dihydroazepines for the first time.
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页码:3787 / 3790
页数:4
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