作者:A. Stambouli、R. Amouroux、F. Chastrette、M. Chastrette、G. Mattioda、A. Blanc
DOI:10.1016/0022-328x(86)80467-3
日期:1986.6
Various organometallic compounds are treated with 1-acetoxy-1,2,2-triethoxyethane (1) an asymmetric derivative of glyoxal. Two kinds of reactions are observed depending on the nature of the organometallic reagents. Organolithium compounds give exclusively addition to the ester carbonyl group, while organocuprate derivatives lead to substitution of the acetoxy group. With Grignard reagents both reactions
各种有机金属化合物用乙二醛的不对称衍生物1-乙酰氧基-1,2,2-三乙氧基乙烷(1)处理。根据有机金属试剂的性质,观察到两种反应。有机锂化合物仅加成酯羰基,而有机铜酸酯衍生物导致乙酰氧基的取代。使用格氏试剂,都会发生两个反应,加成和取代产物的比例取决于溶剂和烷基。讨论了路易斯酸的作用。