Organic Letters p. 832 - 836 (2021)
Update date:2022-08-25
Topics:
Li, Xue-Song
Xu, Dan-Tong
Niu, Zhi-Jie
Li, Ming
Shi, Wei-Yu
Wang, Cui-Tian
Wei, Wan-Xu
Liang, Yong-Min
A gold-catalyzed tandem annulation of propargylic alcohols and pyridylhomopropargylic alcohols is achieved, providing an atom-economical approach to a diverse set of polycyclic dihydrobenzofurans in good yields. The reaction proceeds via the 5-endo-dig cyclization/Meyer?Schuster rearrangement/Friedel?Crafts-type pathway. In this way, three C?C bonds and one C? O bond form to give a polycyclic skeleton in a one-pot process. Moreover, the products exhibit unique optical properties, which reveal their potential application value.
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