Synthesis of α-arylthioacetones using TEMPO as the<i>C</i><sub>3</sub>synthon<i>via</i>a reaction cascade of sequential oxidation, skeletal rearrangement and C–S bond formation
作者:Jiao-Xia Zou、Yi Jiang、Shuai Lei、Gao-Feng Yin、Xiao-Ling Hu、Quan-Yi Zhao、Zhen Wang
DOI:10.1039/c9ob00018f
日期:——
pathway to α-sulfenylated carbonyl compounds from commercially available thiols and universally employed TEMPO and its analogues, which act as C3 synthons through skeletal rearrangement under simple and metal-free conditions. Mechanism studies suggest that this reaction involves a consecutive radical oxidation and cation coupling process. TEMPO analogues and thiols serve as oxidants and reductive reagents
在这里,我们提出了从商业化的硫醇和普遍使用的TEMPO及其类似物到α-亚磺酰基化羰基化合物的空前途径,它们在简单且无金属的条件下通过骨架重排充当C 3合成子。机理研究表明,该反应涉及连续的自由基氧化和阳离子偶联过程。TEMPO类似物和硫醇分别在自由基过程中充当氧化剂和还原剂,而在偶联过程中,前者提供C 3合成子与相关的硫源偶联。