Metal-free and selective cleavage of unstrained carbon–carbon single bonds: Synthesis of <font>β</font>-ketosulfones from <font>β</font>-chlorohydrins and sodium sulfinates
作者:Yanni Li、Deqiang Liang、Yu Chang、Xiangguang Li、Shaoguang Fu、Yunli Yuan、Baoling Wang
DOI:10.1080/00397911.2017.1362439
日期:2017.11.17
selective cleavage of unstrained C–C single bonds was developed. Under the catalysis of KI and in the presence of NaHCO3, the readily available α-chloro-β-hydroxy ketones underwent bond breaking and sulfonylation smoothly to afford β-ketosulfones with high efficiency and broad substrate scope. Mechanism investigations, both experimental and theoretical, showed that a retro-aldol cleavage/nucleophilic
摘要 开发了一种用于选择性裂解无应变 C-C 单键的无金属方案。在KI催化和NaHCO3存在下,易得的α-氯-β-羟基酮顺利地进行键断裂和磺酰化,得到高效且底物范围广的β-酮砜。实验和理论的机制研究表明,可能涉及逆羟醛切割/亲核取代序列。图形概要