I<sub>2</sub>-catalyzed oxidative C(sp<sup>3</sup>)–H/S–H coupling: utilizing alkanes and mercaptans as the nucleophiles
作者:Jiwen Yuan、Xu Ma、Hong Yi、Chao Liu、Aiwen Lei
DOI:10.1039/c4cc05661b
日期:——
By using alkanes and mercaptans as the nucleophiles with di-tert-butyl peroxide (DTBP) as the oxidant, I2-catalyzed oxidative C(sp(3))-H/S-H coupling was achieved. This protocol provides a novel process to construct C(sp(3))-S bonds from commercially available hydrocarbons and mercaptans.
Copper-Catalyzed C–S Formation for the Synthesis of Benzyl Phenyl Sulfides from Dithiocarbamates
作者:Zhi-Bing Dong、Yu Zhou、Cheng-Li Yang、Lei Ye
DOI:10.1055/a-1817-2079
日期:2022.9
An odorless and efficient protocol for the synthesis of benzyl phenyl sulfides is reported. Starting from environmentally friendly phenyl dithiocarbamates and commercially available benzyl halides as starting materials, the target compounds (benzyl phenyl sulfides) could be obtained smoothly and easily by using copper salt as catalyst and Cs2CO3 as base. This method features ligand/additive-free, the
报道了一种用于合成苄基苯硫醚的无味且有效的方案。以环境友好的二硫代氨基甲酸苯酯和市售苄基卤化物为起始原料,以铜盐为催化剂,Cs 2 CO 3为碱,可顺利、容易地得到目标化合物(苄基苯基硫醚)。该方法的特点是无配体/添加剂、使用容易获得的起始材料、廉价的催化剂和良好的底物适用性,说明其在方便制备一些生物活性分子方面的潜在合成价值。
Alkyl Sulfides as Promising Sulfur Sources: Metal-Free Synthesis of Aryl Alkyl Sulfides and Dialkyl Sulfides by Transalkylation of Simple Sulfides with Alkyl Halides
A site‐selective metal‐free dealkylative approach to synthesize aryl alkyl and symmetrical dialkyl sulfides has been developed. This procedure is convenient and has wide functional group tolerance giving rise to sulfides carrying various alkyl chains from simple alkyl sulfides and alkyl halides in good to excellent yields. This transalkylation proceeds by an ionic mechanism via sulfonium intermediates