Synthesis of Substituted 5-(3-Oxobutyl)pyrimidines via Palladium-Catalyzed Coupling Reactions of Iodopyrimidines with Methyl Vinyl Ketone
作者:Akimori Wada、Hirofumi Yasuda、Shōichi Kanatomo
DOI:10.1055/s-1988-27703
日期:——
The reactions of several substituted halopyrimidines with methyl vinyl in the presence of palladium diacetate-triphenylphosphine ketone complex in triethylamine are investigated. In the reactions of bromopyrimidines, the usual olefinic substituted products are obtained. But on using iodopyrimidines, the addition of pyrimidine to the carbon-carbon double bond of methyl vinyl ketone occurs to afford substituted 5-(3-oxobutyl)pyrimidines. Possible mechanisms are presented.
研究了几种取代卤嘧啶与醋酸双苯基磷酸钯-酮复合物在三乙胺存在下与甲基乙烯反应的情况。在溴嘧啶的反应中,获得了通常的烯烃取代产物。但使用碘嘧啶时,嘧啶与甲基乙烯酮的碳碳双键发生加成,生成取代的5-(3-氧代丁基)嘧啶。提出了可能的反应机制。