Efficient Synthesis of 2-Substituted Pyrido[3,2-d]pyrimidines Involving SNAr and Palladium-Catalyzed Cross-Coupling Reactions
作者:Sylvain Routier、Abdellatif Tikad、Mohamed Akssira、Jean-Michel Léger、Christian Jarry、Gérald Guillaumet
DOI:10.1055/s-0029-1216854
日期:2009.7
of various 2-substituted pyrido[3,2-d]pyrimidines is reported. Starting from 2,4-dichloropyrido[3,2-d]pyrimidine, a regioselective pallado-dehalogenation led to 2-chloropyrido[3,2-d]pyrimidine, which was used in SNAr and palladium-catalyzed cross-coupling reactions in order to afford highly functionalized products in very good yields. arylations - amination - palladium
报道了各种2-取代的吡啶并[3,2- d ]嘧啶的有效和原始合成。由2,4-二氯吡啶并[3,2-起始d ]嘧啶,导致2-氯吡啶并[3,2-区域选择性pallado-脱卤d ]嘧啶,其S中使用Ñ Ar和钯催化的交叉偶联反应为了以非常好的收率提供高度功能化的产品。 芳基化-胺化-钯