Acyl transfer reactions of carbohydrates, alcohols, phenols, thiols and thiophenols under green reaction conditions
作者:Santosh Kumar Giri、K. P. Ravindranathan Kartha
DOI:10.1039/c4ra16916f
日期:——
Acyl transfer reactions of various carbohydrates, alcohols, phenols, thiols and thiophenols were achieved at room temperature in high yields and catalytic efficiency in the presence of methane sulfonic acid, a green organic acid, under solvent-free conditions over short time periods. The method is mild enough to allow acid labile substituents such as isopropylidene acetals and trityl ethers on the
在无溶剂条件下,在短时间内,在甲烷磺酸(一种绿色有机酸)的存在下,室温下以高收率和催化效率实现了各种碳水化合物,醇,酚,硫醇和苯硫酚的酰基转移反应。该方法足够温和,以使反应底物上的酸不稳定取代基(如亚异丙基乙缩醛和三苯甲基醚)完全不受影响。在室温下,也已经有效地实现了游离一元和二元羧酸(例如乙酸,肉桂酸,唾液酸和酒石酸)与醇(例如薄荷醇,乙醇,甲醇或丙二醇)的酯化反应。还报道了用二氧化硅-硫酸对该方法进行的比较研究。