Molecular Iodine-Mediated Difunctionalization of Alkenes with Nitriles and Thiols Leading to β-Acetamido Sulfides
作者:Huanhuan Cui、Xiaoxia Liu、Wei Wei、Daoshan Yang、Chenglong He、Tiantian Zhang、Hua Wang
DOI:10.1021/acs.joc.5b02579
日期:2016.3.18
A direct difunctionalization protocol of alkenes with nitriles and thiols toward β-acetamido sulfide derivatives has been proposed under metal-free synthesis conditions. The present protocol provides the facile and highly efficient synthesis of various β-acetamido sulfides in a scaled-up manner with good to excellent yields simply using inexpensive molecular iodine as a catalyst, DMSO as a mild oxidant
NaI-Mediated Acetamidosulphenylation of Alkenes with Nitriles as the Nucleophiles: A Direct Access to Acetamidosulfides
作者:Yang Zheng、Yue He、Guangwei Rong、Xiaolu Zhang、Yuecheng Weng、Kuiyong Dong、Xinfang Xu、Jincheng Mao
DOI:10.1021/acs.orglett.5b02752
日期:2015.11.6
An example of a transition-metal-free, direct, and efficient acetamidosulphenylation reaction of alkenes using nitriles as the nucleophiles via a radical process is presented. This reaction shows a broad substrate scope and high regioselectivity and provides straightforward access to acetamidosulfide derivatives in moderate to high yields.
HBr/H 2 O 2 -mediated formation of C–S bond with thiosulfates
作者:Rongxing Zhang、Shengzhou Jin、Yuanxing Wan、Sen Lin、Zhaohua Yan
DOI:10.1016/j.tetlet.2018.01.055
日期:2018.2
environmentally-friendly H2O2 as oxidant and HBr as catalyst. Based on the preliminary experimental results, a plausible reaction mechanism was proposed for HBr/H2O2-mediated formation of C–S bond with thiosulfates.
通过HBr / H 2 O 2介导的苯乙烯和4-羟基香豆素的亚磺酰基化反应导致不对称硫化物的形成,一种新颖,有效且绿色的构建C–S键的方案得以开发。使用环境友好的H 2 O 2作为氧化剂和HBr作为催化剂,一步一步制备各种不对称硫化物,并具有中等至良好的收率。根据初步的实验结果,提出了一种可能的反应机理,该反应机理是HBr / H 2 O 2介导的与硫代硫酸盐形成CS键的反应。
NaI-Mediated Acetamidosulfenylation of Alkenes with Bunte Salts as Thiolating Reagent Leading to β-Acetamido Sulfides
作者:Yuanxing Wang、Sen Lin、Rongxing Zhang、Zhaohua Yan、Dingyi Wang
DOI:10.1055/s-0036-1588144
日期:2017.6
acetamidosulfenylation reaction of alkenes was developed, in which NaI was used as a catalyst, DMSO as the oxidant, nitriles as both the solvent and nucleophiles and stable, readily available Bunte salts as thiolating reagents. The reactions were carried out under mild conditions generating β-acetamido sulfides in good yields. Moreover, the reaction can be performed when alcohols are used as nucleophiles providing
开发了一种直接有效的烯烃乙酰胺磺基化反应方法,其中使用 NaI 作为催化剂,DMSO 作为氧化剂,腈作为溶剂和亲核试剂,稳定、容易获得的 Bunte 盐作为硫醇化试剂。反应在温和条件下进行,以良好的产率生成 β-乙酰胺硫化物。此外,当醇用作亲核试剂时,可以进行反应,分别以中等产率提供相应的 β-烷氧基硫化物。