Construction of a Pyrimidine Framework through [3 + 2 + 1] Annulation of Amidines, Ketones, and <i>N</i>,<i>N</i>-Dimethylaminoethanol as One Carbon Donor
作者:Zemin Qin、Yongmin Ma、Fanzhu Li
DOI:10.1021/acs.joc.1c01847
日期:2021.10.1
synthesis of pyrimidine derivatives has been developed. It involves a [3 + 2 + 1] three-component annulation of amidines, ketones, and one carbon source. N,N-Dimethylaminoethanol is oxidized through C(sp3)–H activation to provide the carbon donor. One C–C and two C–N bonds are formed during the oxidative annulation process. The reaction shows good tolerance to many important functional groups in air, making
已开发出一种高效、简便且环保的嘧啶衍生物合成方法。它涉及脒、酮和一个碳源的 [3 + 2 + 1] 三组分环化。N , N -二甲基氨基乙醇通过 C(sp 3 )–H 活化被氧化以提供碳供体。在氧化环化过程中形成一个 C-C 和两个 C-N 键。该反应对空气中的许多重要官能团表现出良好的耐受性,使该方法成为一种高度通用的替代方法,并对现有的用于构建嘧啶骨架,尤其是 4-脂肪族嘧啶的方法进行了重大改进。