Synthesis and in Vitro Cytotoxic Evaluation of New Derivatives of Pyrido[1,2-a]benzimidazolic Ring System: The Pyrido[1',2':1,2]imidazo[4,5-h]quinazolines.
在碘化铜(CuI)存在下,以分子碘(I 2)为唯一氧化剂,进行了N-芳基烯胺的分子内C–H官能化反应。本文所述的高效且通用的合成方法与N-杂芳基和N-芳基取代的烯胺兼容,并通过I 2生成各种咪唑并[1,2- a ]吡啶和吲哚衍生物介导的氧化性C–N和C–C键的形成。这种无配体的C–H官能化方法也可以与粗制烯胺一起使用,这可以直接从芳胺和酮(或炔烃)直接合成产物,而无需纯化烯胺中间体。
Elements as Direct Feedstocks for Organic Synthesis: Fe/I<sub>2</sub>/O<sub>2</sub> for Diamination of 2-Cyclohexenones with 2-Aminopyrimidine and 2-Aminopyridines
Elements as feedstocks for organic synthesis, the trio of metallic iron, molecular iodine, and dioxygen, were found to be an excellent tool for oxidative regioselectivediamination of conjugated enones with 2-aminopyrimidine (a guanidine surrogate) and 2-aminopyridines leading to unaromatized coupled products in moderate to good yields.