作者:Qingjiang Li、Gregory P. Tochtrop
DOI:10.1021/ol500127u
日期:2014.3.7
A carefully designed three-step unsaturation of carboxylic acids is described. Briefly, carboxylic acids were converted to the trifluoromethyl ketone. Subsequent treatment with selenium dioxide followed by hydrolysis afforded α,β-unsaturated carboxylic acids. The mechanism of the reported transformation was investigated, which led us to propose a novel explanation featuring selenium dioxide assisted
描述了精心设计的三步羧酸不饱和键。简而言之,将羧酸转化为三氟甲基酮。随后用二氧化硒处理,然后水解,得到α,β-不饱和羧酸。研究了报道的转化的机理,这使我们提出了一种新颖的解释,其特征是二氧化硒辅助的三氟甲基酮的烯醇化,然后进行β-去质子化。