Access to Difluoromethylene-Skipped 1,4-Diynes with <i>gem</i>-Difluoropropargyl Bromide
作者:Wen-Hao Guo、Zhi-Ji Luo、Wenbin Zeng、Xingang Zhang
DOI:10.1021/acscatal.6b03216
日期:2017.1.6
(CF2)-skipped 1,4-diynes are a versatile synthon in organic synthesis, but efficient methods to access such a fluorinated structural motif are very limited. Herein, we report an efficient method for catalytic synthesis of CF2-skipped 1,4-diynes through palladium-catalyzed cross-coupling between terminal alkynes and gem-difluoropropargyl bromide. The reaction exhibits high functional group tolerance and broad
跳过二氟亚甲基(CF 2)的1,4-二炔是有机合成中的通用合成子,但是获得这种氟化结构基序的有效方法非常有限。本文中,我们报告了一种通过末端炔烃与宝石-二氟炔丙基溴之间的钯催化交叉偶联来催化合成CF 2跳过的1,4-二炔的有效方法。该反应表现出高的官能团耐受性和广泛的底物范围。该方法的应用导致了一系列重要的药物化学中重要的二氟分子。