作者:Alexis Hernández-Guadarrama、Fernando Cuevas、Iris J. Montoya-Balbás、Perla Román-Bravo、Irma Linzaga-Elizalde
DOI:10.1016/j.tetlet.2022.154105
日期:2022.9
A series of β-mono- and β,γ-di-substituted α-methylene-γ-lactams was synthesized. This method involves the 1,4-addition of nitroalkanes to arylidenemalonates to obtain nitro derivatives using a conventional method and microwave irradiation. Subsequent nitro reduction provided α-carbomethoxy-γ-lactam, a versatile molecule that was used to obtain the alcohol. After alcohol, the mesylate was obtained
合成了一系列β-单-和β,γ-二取代的α-亚甲基-γ-内酰胺。该方法涉及使用常规方法和微波辐射将硝基烷烃与亚芳基丙二酸酯进行 1,4-加成以获得硝基衍生物。随后的硝基还原提供了α-碳甲氧基-γ-内酰胺,这是一种用于获得酒精的通用分子。醇后得到甲磺酸酯,将其消除得到α-亚甲基-γ-内酰胺。工艺特点是后处理容易、反应条件温和、收率好。