Synthesis of triazene-substituted homoconjugated push-pull chromophores by formal [2 + 2] cycloadditions
作者:Kübra Erden、İpek Savaş、Cagatay Dengiz
DOI:10.1016/j.tetlet.2019.06.046
日期:2019.7
building blocks for branched dendrimer syntheses, were utilized as a new type of electron-donor component in formal [2 + 2] cycloadditions. The click-type, atom-economic reactions proceed efficiently under ambient conditions without any catalyst. The resulting products are structurally interesting push-pullchromophores and were investigated in the context of optoelectronic properties using UV/Vis spectroscopy
Palladium-catalyzed carbonylative Sonogashira coupling between aryl triazenes and alkynes
作者:Wanfang Li、Xiao-Feng Wu
DOI:10.1039/c5ob00502g
日期:——
We developed a palladium-catalyzed carbonylative Sonogashira reaction with aryl triazenes and alkynes as substrates and methanesulfonic acid as the additive. A series of α,β-ynones were synthesized by this alternative procedure. Notably, bromides, iodides and hydroxyl groups could be well-tolerated under these reaction conditions.