期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 54, 期 46, 页码 13715-13718出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201506764
关键词
cycloaddition; eight-membered heterocycles; homogeneous catalysis; rhodium; zwitterions
资金
- Basic Science Research Program through National Research Foundation of Korea (NRF) - Ministry of Education, Science and Technology [C1010010-01-01]
- TJ Park Science Fellowship of POSCO TJ Park Foundation
A new type of intermolecular rhodium(II)-catalyzed [5+3]cycloaddition has been developed. This higher-order cycloaddition between pyridinium zwitterion 1,5-dipole equivalents and enol diazoacetates enables the formation of eight-membered heterocyclic skeletons, which are otherwise difficult to construct. The optimized cycloaddition occurs efficiently under mild conditions with a wide range of pyridinium zwitterions and with high functional-group tolerance.
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