Silver-catalyzed one-pot synthesis of benzyl 2-alkynoates under ambient pressure of CO2 and ligand-free conditions
作者:Fang-Jie Guo、Zhi-Zhi Zhang、Jing-Yun Wang、Jing Sun、Xiang-Chen Fang、Ming-Dong Zhou
DOI:10.1016/j.tet.2016.12.075
日期:2017.2
The carboxylative coupling of aryl/alkyl terminal alkynes, CO2 and benzyl halides was investigated using silver iodide as the catalyst and Cs2CO3 as the base in CH3CN under ligand-free conditions. This reaction protocol shows a wide substrate scope and high functional group tolerance ability for benzyl halides, in which various functionalized benzyl 2-alkynoates were achieved in good yields. This one-pot
芳基/烷基末端炔烃,CO的carboxylative耦合2使用碘化银作为催化剂和Cs和苄基卤化物进行了研究2 CO 3在CH基座3无配体的条件下,CN。该反应方案显示出宽的底物范围和对苄基卤的高官能团耐受能力,其中以良好的产率获得了各种官能化的2-炔基苄基酯。这种一锅,无配体和CH 3 CN介导的反应被证明易于处理,并且在大气CO 2压力下可以促进。