Synthesis of .alpha.-hydroxy ketones by direct, low-temperature, in situ nucleophilic acylation of aldehydes and ketones by acyllithium reagents
作者:Dietmar Seyferth、Robert M. Weinstein、Richard C. Hui、Wei Liang Wang、Colin M. Archer
DOI:10.1021/jo00047a014
日期:1992.10
The reaction of n-, sec-, and tert-butyllithium with CO at atmospheric pressure at -110 and -135-degrees-C in the appropriate solvent system in the presence of ketones and aldehydes generates the acyllithium, RC(O)Li, which reacts with the carbonyl compound to give the alpha-hydroxy ketone, generally in good yield. Reactions with aldehydes are limited in scope, working well with the t-BuLi-derived acyllithium reagents, but not with n-BuC(O)Li.