AgOTf-Catalyzed Cycloisomerization of Alkynyl Oxiranes for Dihydro-1,4-oxazine Synthesis

[摘要]：The efficient AgOTf-catalyzed isomerization reactions of various alkynyl oxiranes and alkynyl allyl alcohols were carried out at room temperature with moderate to good yields. This is an economical and mild method for the construction of O-heterocyclic compounds.

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