A new, convenient and selective 4-dimethylaminopyridine-catalyzed trifluoroacetylation of anilines with ethyl trifluoroacetate
作者:Mahavir Prashad、Bin Hu、Denis Har、Oljan Repič、Thomas J Blacklock
DOI:10.1016/s0040-4039(00)01812-8
日期:2000.12
new, convenient, and selective 4-dimethylaminopyridine-catalyzed trifluoroacetylation of anilines with ethyl trifluoroacetate is described. Anilines, containing other functional groups, e.g. alcohols, phenols, hindered secondary amines, and secondary anilines, are also selectively trifluoroacetylated in high yields under these newly developed conditions.
描述了一种新的,方便的,选择性的4-二甲基氨基吡啶催化的三氟乙酸乙酯对苯胺的三氟乙酰化反应。在这些新开发的条件下,还可以高收率选择性地将含有其他官能团(例如醇,酚,受阻仲胺和仲苯胺)的苯胺选择性三氟乙酰化。