作者:Kenneth B. Wiberg、Ashley L. Bartelson、William F. Bailey
DOI:10.1016/j.tetlet.2010.11.125
日期:2011.4
The reactions of alkyllithiums with ketones and thioketones proceed in fundamentally different ways. Whereas alkyllithiums add to the carbonyl carbon of ketones to give tertiary alcohols, the reaction with thioketones proceeds to give secondary thiols by reduction of the CS group. Transition states for the addition and reduction reactions of acetone and thioacetone in ethereal solution have been located
烷基锂与酮和硫代酮的反应以根本不同的方式进行。烷基锂加到酮的羰基碳上可得到叔醇,而与硫酮的反应则通过还原CS基团而产生仲硫醇。已经确定了在醚溶液中丙酮和硫代丙酮的加成和还原反应的过渡态,计算出的活化自由能与在与烷基锂反应中观察到的酮和硫代酮的行为相符。