Selective synthesis of 4-thiomethyl-1,3-dioxolan-2-ones under microwave irradiation using an environmentally benign KF/Al2O3/PEG-400 system
作者:Gelson Perin、Cristian M. Silva、Elton L. Borges、José E. G. Duarte、Helen A. Goulart、Rafaela B. Silva、Ricardo F. Schumacher
DOI:10.1007/s11164-015-2410-x
日期:2016.6
selective synthesis of 4-thiomethyl-1,3-dioxolan-2-ones promoted by KF/Al2O3 using PEG-400 as solvent under microwave irradiation. The protocol employs 3- O -tosyl glycerol 1,2-carbonate 1 and a diverse array of thiols 2 to afford corresponding 4-thiomethyl-1,3-dioxolan-2-ones 3 in good yield and short reaction time compared with conventional heating methods. Moreover, selective synthesis of 1,3-bi
我们描述了一种简单而快速的方法,用于在微波辐射下使用PEG-400作为溶剂选择性合成KF / Al 2 O 3促进的4-硫代甲基-1,3-二氧戊环-2-酮。该方案使用3 - O- 甲苯磺酰基甘油1,2-碳酸酯 1 和各种硫醇 2 来提供相应的4-硫 甲基-1,3-二氧戊环-2-酮 3 与常规加热相比产率高且反应时间短方法。此外,提出了通过化学计量和温度控制反应选择性合成1,3-双-芳基硫代丙烷-2-醇 4 。