Synthesis of 2-Substituted Benzofurans from o-Iodophenols and Terminal Alkynes with a Recyclable Palladium Catalyst Supported on Nano-sized Carbon Balls under …

EK Yum, OK Yang, JE Kim, HJ Park

Index: Yum, Eul Kgun; Yang, Ok-Kyung; Kim, Ji-Eun; Park, Hee Jung Bulletin of the Korean Chemical Society, 2013 , vol. 34, # 9 p. 2645 - 2649

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Citation Number: 4

Abstract

Abstract We have developed a one-step synthesis of benzofurans from o-iodophenol and various terminal alkynes, by using Pd catalyst supported on nano-sized carbon balls (NCB) under copper-and ligand free conditions. This recyclable catalyst could be reused more than 5 times in the same heteroannulation reaction. The results have demonstrated that diverse 2- substituted benzofurans with tolerant functional groups can be prepared simply and ...