A General Synthesis of Dihydronaphthyridinones with Aryl-Substituted Quaternary Benzylic Centers
作者:John C. Murray、Colin R. Rose、John M. Curto
DOI:10.1021/acs.joc.2c02956
日期:2023.3.3
A variety of 7,8-dihydro-1,6-naphthyridin-5(6H)-ones and 3,4-dihydro-2,7-naphthyridin-1(2H)-ones with quaternary centers and aryl substitutions at the benzylic carbon were synthesized with a new 3-step, 2-pot method. The first step is an SNAr using widely available 2- and 4-chloronicotinate esters and tertiary benzylic nitriles. The last two steps are a one-pot selective nitrile reduction in the presence
各种 7,8-dihydro-1,6-naphthyridin-5(6H)-ones 和 3,4-dihydro-2,7-naphthyridin-1(2H)-ones 在苄基碳上具有季中心和芳基取代采用新的 3 步 2 锅法合成。第一步是使用广泛使用的 2- 和 4- 氯烟酸酯和叔苄腈的S N Ar。最后两个步骤是在存在各种杂环的情况下进行一锅选择性腈还原,然后是酯上游离胺的内酰胺环闭合。