期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 53, 期 26, 页码 6645-6649出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201402803
关键词
carbenes; isomerization; nitrogen heterocycles; rhodium; small ring systems
资金
- Shanghai Municipal Committee of Science and Technology [11JC1402600]
- National Natural Science Foundation of China [20472096, 21372241, 21361140350, 20672127, 21102166, 21121062, 21302203, 20732008]
- National Basic Research Program of China (973) [2010CB833302]
- Fundamental Research Funds for the Central Universities [WJ1014034, WK1013004]
A novel rhodium(II)-catalyzed tandem cycloisomerization of methylenecyclopropanes (MCPs) with N-sulfonyl 1,2,3-triazoles is disclosed. The reaction produces a series of highly functionalized polycyclic N heterocycles via a rhodium imino carbene intermediate. A distinct feature of this divergent synthesis is that different types of substrates control the reaction pathways. Moreover, several interesting transformations of these products to construct diazabicyclo[3.2.1]octane derivatives are also reported.
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