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The synthetic utility of 3-thioaryne intermediates has been demonstrated through an aryne relay approach. The efficient synthesis of o-silylaryl triflate-type 3-thioaryne precursors has been achieved by the regioselective silylthiolation of… Click to show full abstract
The synthetic utility of 3-thioaryne intermediates has been demonstrated through an aryne relay approach. The efficient synthesis of o-silylaryl triflate-type 3-thioaryne precursors has been achieved by the regioselective silylthiolation of 3-(triflyloxy)arynes with silyl sulfides. Various 3-thioarynes were successfully generated from these precursors and reacted with various arynophiles to afford diverse multisubstituted aryl sulfides. Further derivatizations of the products enabled easy access to the novel sulfur-containing π-extended heterocycles, which demonstrates the utility of this method.
Journal Title: Organic letters
Year Published: 2019
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