Journal of Organic Chemistry p. 8185 - 8195 (2020)
Update date:2022-08-05
Topics:
Zhao, Runmin
Huang, Xianhua
Wang, Minning
Hu, Shanshan
Gao, Yuxing
Xu, Pengxiang
Zhao, Yufen
The first facile and efficient acid-catalyzed direct coupling of a wide range of unprotected 2,3-allenols with arylphosphine oxides was developed, offering a general, one-step approach for the synthesis of structurally diverse ?-ketophosphine oxides accompanied by concurrent C-P/Ca?O bond formation with remarkable functional group tolerance and complete atom-economy under metal- A nd additive-free conditions. Mechanistic studies showed that this transformation involved a rearrangement and a phospha-Michael reaction.
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