Transition Metal-Catalyzed Cyclization Reaction of Enediynes to Benzo [b] naphtha [2,1-d] thiophene

来源 :The 24th International Society of Heterocyclic Chemistry Con | 被引量 : 0次 | 上传用户:Aslaen
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An efficient synthetic method has been developed to construct benzo[b]naphtho[2,1-d]thiophene (2) via Au-catalyzed cyclizayion reaction.Treatment of 2-[2-(2-alkynylphenyl)ethynyl]thioanisole (1) under 2 equivalents of NIS and 5 mol% of Ph3PAuCl/AgSbF6 at refluxing CH2Cl2 gave compound 2 in good to excellent yields.
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