Radical Addition of 4-Hydroxyquinazolines and Alkylation of Quinones by the Electro-Induced Homolysis of 4-Alkyl-1,4-dihydropyridines
作者:Qiping Feng、Ping Wang、Xiaosheng Luo
DOI:10.1055/a-1737-2765
日期:2022.6
radicals via the electro-induced homolysis of 4-alkyl-1,4-dihydropyridines (alkyl-DHPs) is reported. The resulting alkyl radicals reacted with 4-hydroxyquinazolines or quinones to afford 2-alkyldihydroquinazolinones or alkylated quinones. A broad range of alkyl DHPs could be used as versatile radical precursors under electrolysis conditions. This alterative strategy provided a simple and effective pathway
报道了通过 4-烷基-1,4-二氢吡啶 (烷基-DHP) 的电诱导均裂形成以 C(sp 3 ) 为中心的自由基。所得烷基自由基与4-羟基喹唑啉或醌反应,得到2-烷基二氢喹唑啉酮或烷基化醌。在电解条件下,多种烷基 DHP 可用作通用的自由基前体。这种替代策略为在温和条件下构建C(sp 2 )-C(sp 3 )和C(sp 3 )-C(sp 3 )键提供了一种简单有效的途径。