polysubstituted pyrimidines are smoothly formed via a base-promoted intermolecular oxidation C–N bond formation of allylic C(sp3)–H and vinylic C(sp2)–H of allyllic compounds with amidines using O2 as the sole oxidant. This protocol features protecting group free nitrogen sources, good functional group tolerance, high atom economy, and environmental advantages.
各种多取代的
嘧啶通过烯丙基化合物的烯丙基C(sp 3)-H和烯丙基C(sp 2)-H与am的碱促进的分子间氧化C-N键形成,使用O 2作为唯一氧化剂,可顺利形成。该协议具有保护基自由氮源,良好的官能团耐受性,高原子经济性和环境优势的特点。