Electrochemical oxidative radical oxysulfuration of styrene derivatives with thiols and nucleophilic oxygen sources
作者:Yang Wang、Lingling Deng、Haibo Mei、Bingnan Du、Jianlin Han、Yi Pan
DOI:10.1039/c8gc01337c
日期:——
stoichiometric amount of a strong oxidant and an expensive transition-metal catalyst. This work describes the first example of the electrochemical oxysulfuration reaction of olefins with thiols and nucleophilicoxygen sources. This electrochemical difunctionalization reaction is conducted under catalyst- and oxidant-free conditions, and shows good substrate generality, affording thio-substituted alcohols,
molecular-iodine-catalyzed radical reaction. This reaction involves hydroxysulfenylation of alkenes with disulfides in aqueous solution. Air is used as the oxidant without any additives. Control experiments indicated that the oxygen atom of products might come from O2. Both aryl alkenes and aliphatic alkenes were well tolerated in this transformation and afforded the corresponding products in moderate
oxidative dehydrogenation cross-coupling reaction between aldehyde hydrazones and thiophenols is demonstrated for the first time, which resulted in a variety of (Z)-thioetherified products in moderate to excellent yields. This strategy can be carried out under an air atmosphere, featuring scalability and excellent stereoselectivity. In addition, the transformation efficiently produces readily recyclable
首次证明了醛腙和苯硫酚之间的电化学促进的氧化脱氢交叉偶联反应,该反应以中等至优异的产率产生了多种( Z )-硫醚化产物。该策略可以在空气气氛下进行,具有可扩展性和优异的立体选择性。此外,该转化高效地产生了高产率且易于回收的副产物二硫化物,显着减少了硫醚化造成的环境污染。