Access to Substituted Cyclobutenes by Tandem [3,3]-Sigmatropic Rearrangement/[2+2] Cycloaddition of Dipropargylphosphonates under Ag/Co Relay Catalysis

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Chem. Sci., 2020, Accepted ManuscriptDOI: 10.1039/D0SC02972F, Edge Article Open Access &nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Qijian Ni, Xiaoxiao Song, Chin Wen Png, Yongliang Zhang, Yu ZhaoWe present herein an unconventional tandem [3,3]-sigmatropic rearrangement/[2+2] cycloaddition of simple dipropargylphosphonates to deliver a range of bicyclic polysubstituted cyclobutenes and cyclobutanes under Ag/Co relay catalysis. An interesting switch from...The content of this RSS Feed (c) The Royal Society of Chemistry

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