A synthetic method that combines [Au2(μ‐dppm)2]Cl2 (dppm=bis(diphenylphosphanyl)methane) and UVA LED (LED=light emitting diode) light (365 nm) to catalyze the regioselective C1‐alkynylation of N‐alkyl‐1,2,3,4‐tetrahydroisoquinolines (THIQs) with alkynyl bromides is described. The reaction mechanism was delineated to involve a reductive quench pathway to generate the two posited radical species of the
一种合成方法,将[Au 2(μ-dppm)2 ] Cl 2(dppm =双(
二苯基膦基)
甲烷)和UVA LED(LED =发光二极管)光(365 nm)结合起来,催化N的区域选择性C1-炔基化描述了烷基,1,2,
3,4,4-
四氢异喹啉(THIQs)与炔基
溴化物的关系。划定了反应机理,涉及一个还原性淬灭途径,以生成含氮杂环和有机卤化物的两个正自由基基团。相反,自由基通过有人建议在类似1-
碘炔的对照实验中使用氧化猝灭途径。这种碳-碳键形成策略的有用性还通过将其应用于阿片类
镇痛药甲氧
磷的形式合成和原小ber碱
生物碱衍
生物的合成而得到了证明。