Substitution Alters the Mode of Molecular Iodine-Mediated Intramolecular Cyclization: Syntheses of Benzoxepine and Benzo-2H-pyran Derivatives

[摘要]：The synthesis of benzoxepine and benzo-2H-pyran derivatives by the implementation of an inxepensive and easy to handle molecular iodine-mediated intramolecular electrophilic cyclization strategy is described. Simple substitution at the terminus of the propargyl group alters the course of the iodocyclization.

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