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

被引：11

作者：

Yum, Eul Kgun ^{[1
]}

Yang, Ok-Kyung ^{[1
]}

Kim, Ji-Eun ^{[1
]}

Park, Hee Jung ^{[2
]}

机构：

[1] Chungnam Natl Univ, Dept Chem, Taejon 305764, South Korea

[2] Korea Basic Sci Inst, Seoul 120750, South Korea

来源：

BULLETIN OF THE KOREAN CHEMICAL SOCIETY | 2013年 / 34卷 / 09期

基金：

新加坡国家研究基金会;

关键词：

Benzofuran; Nano-sized carbon balls; Terminal alkynes; Recyclable; Palladium catalyst; COUPLING REACTION; ROUTE; EFFICIENT; DOMINO;

D O I：

10.5012/bkcs.2013.34.9.2645

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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 conveniently under these conditions.

引用

页码：2645 / 2649

页数：5

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