Organic Letters p. 1018 - 1021 (2020)
Update date:2022-08-05
Topics:
Or?owska, Katarzyna
Rybicka-Jasińska, Katarzyna
Krajewski, Piotr
Gryko, Dorota
This Letter describes the metal-free, blue-light-induced [2,3]-sigmatropic rearrangement of sulfonium ylides generated from donor/acceptor diazoalkanes and propargyl sulfides. The reaction furnishes highly functionalized allenes from a broad range of starting materials in decent yield. Mechanistic experiments supported by the literature data suggest singlet carbenes as intermediates in this reaction.
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