Pd-Catalyzed Multicomponent Cross-Coupling of Allyl Esters with Alkyl Bromides and Potassium Metabisulfite: Access to Allylic Sulfones
作者:Kai-Yi Zhang、Fang Long、Chuan-Chong Peng、Jin-Hui Liu、Li-Jun Wu
DOI:10.1021/acs.orglett.3c02066
日期:2023.8.11
A Pd-catalyzed multicomponent cross-coupling of allyl esters with alkyl bromides to synthesize allylic sulfones by using K2S2O5 as a connector is first reported. The reaction displays a broad range of substrate generality along with excellent functional group compatibility and produces the products with high regioselectivity (only E). Furthermore, the biologically active molecules with a late-stage
首次报道了以K 2 S 2 O 5作为连接剂,Pd催化烯丙基酯与烷基溴多组分交叉偶联合成烯丙基砜。该反应显示出广泛的底物通用性以及优异的官能团兼容性,并产生具有高区域选择性的产物(仅E)。此外,经过后期修饰的生物活性分子,包括阿司匹林、薄荷醇、冰片、雌酮等,也与多组分交叉偶联反应高度相容。机理研究表明SO 2插入C-Pd 键的过程参与了这一转变。