Studies on the reaction of 1,2-dicarbonyl compounds with dimethyl 3-ketoglutarate. Steric and electronic effects
作者:G. Kubiak、J.M. Cook、U. Weiss
DOI:10.1016/s0040-4039(00)98951-2
日期:1985.1
The steric and electronic influences of substituents attached to the 1,2-dicarbonyl system on the success of the reaction of 1,2- diketones with dimethyl 3-ketoglutarate have been examined. It is clear from the reaction of with benzil, thienil, furil, and phenanthrenequinone , respectively, coupled with 13C NMR spectroscopy of the reaction intermediates, that steric effects play a major role in the
已经研究了连接到1,2-二羰基系统上的取代基对1,2-二酮与3-酮戊二酸二甲酯反应成功的空间和电子影响。距离的反应明确用苯偶酰,thienil,糠偶酰,和菲醌,分别加上13反应中间体的C NMR光谱学,该空间效应发挥在反应中提供的整体成功主要作用。这类似于之前用1,2-二酮R-CO-CO-R观察到的情况,其中R代表脂族或脂环族基团。