Synthesis of 2-Aryl and 3-Aryl Benzo[<i>b</i>]furan Thioethers Using Aryl Sulfonyl Hydrazides as Sulfenylation Reagents
作者:Xia Zhao、Lipeng Zhang、Xiaoyu Lu、Tianjiao Li、Kui Lu
DOI:10.1021/acs.joc.5b00146
日期:2015.3.6
An efficient, metal-free protocol used to synthesize aryl benzo[b]furan thioethers based on the I2-catalyzed cross-coupling of benzo[b]furans as well as the electrophilic cyclization of 2-alkynylphenol derivatives with aryl sulfonyl hydrazides was developed. Various 2-aryl and 3-aryl benzo[b]furan thioethers were obtained in moderate to good yields.
开发了一种有效的,无金属的方案,该方案用于基于I 2催化的苯并[ b ]呋喃的交叉偶联以及2-炔基苯酚衍生物与芳基磺酰肼的亲电环化反应来合成芳基苯并[ b ]呋喃硫醚。。以中等至良好的产率获得了各种2-芳基和3-芳基苯并[ b ]呋喃硫醚。
Metal-free synthesis of 3-chalcogen benzo[b]furans via an iodine-mediated electrophilic cyclisation of 2-alkynylanisoles
作者:Mei Xu、Xiao-Hong Zhang、Ping Zhong
DOI:10.1016/j.tetlet.2011.10.045
日期:2011.12
An efficient and metal-free method was developed to synthesize 3-chalcogen benzo[b]furans via the iodine-mediatedelectrophilic cyclisation of 2-alkynylanisoles with disulfides or diselenides. In the presence of I2, various 3-sulfenylbenzofurans or 3-selenenylbenzofurans were obtained in moderate to high yields.
通过用二硫化物或二硒化物通过碘介导的2-炔基茴香醚的亲电亲电环化反应,开发了一种高效且无金属的方法来合成3-硫属元素苯并[ b ]呋喃。在I 2的存在下,以中等至高产率获得了各种3-亚磺酰基苯并呋喃或3-硒代苯并呋喃。