Organic Letters p. 3859 - 3863 (2021)
Update date:2022-08-04
Topics:
Zhao, Meng
Wang, Ying
Wang, Zi-Lu
Xu, Jian-Lin
Dai, Kai-Yang
Xu, Yun-He
In this protocol, copper-catalyzed diverse silylative carbocyclization reactions of 2,2′-diethynylbiaryl derivatives with silaboronate were reported. Three new and novel types of domino reactions for the copper-catalyzed transformation of silaboronate were discovered. The corresponding cyclobuta[l]phenanthrene, bis((silyl)methyl)phenanthrene, and silyl-substituted exocyclic diene products were chemoselectively formed with high efficiency.
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