作者:Pack, Shawn K.、Feng, Lei、Chen, Ce、Li, Zhongzhen
DOI:10.1021/acs.oprd.4c00116
日期:——
An efficient, scalable synthesis of functionalized 5-fluoropyrrolo[2,1-f][1,2,4]triazines was developed from readily available starting materials. The synthesis is highlighted by a safe, Cu mediated difluoroacetate addition to vinyl TMS, selective formylation of a 3-fluoropyrrole, and sequential imine formation followed by cyclization to the triazine core. Addition of other electrophiles to 3-fluoropyrrole
利用现成的起始材料开发了一种高效、可规模化的官能化 5-氟吡咯并[2,1-f][1,2,4]三嗪合成方法。该合成的特点是安全、铜介导的二氟乙酸加成到乙烯基 TMS、3-氟吡咯的选择性甲酰化以及顺序亚胺形成,然后环化为三嗪核心。向 3-氟吡咯添加其他亲电子试剂也显示出同样的选择性。