Palladium-catalyzed carbonylative coupling of α-chloroketones with hydrazines: a simple route to pyrazolone derivatives
作者:Martina Capua、Catia Granito、Serena Perrone、Antonio Salomone、Luigino Troisi
DOI:10.1016/j.tetlet.2016.06.072
日期:2016.7
A range of pyrazol-5-one and pyrazol-3-one derivatives has been synthesized in a single step via a palladium-catalyzed carbonylation of aromatic or aliphatic α-chloroketones, in the presence of aromatic or aliphatic hydrazines. A reaction mechanism, explaining the observed regioselectivity, has been also discussed.
在芳族或脂族
肼的存在下,通过
钯催化的芳族或脂族α-
氯酮的羰基化,一步合成了一系列
吡唑-5-酮和
吡唑-3-酮衍
生物。还讨论了解释观察到的区域选择性的反应机理。