Syntheses of 3,4- and 1,4-dihydroquinazolines from 2-aminobenzylamine
作者:Jimena E Díaz、Silvia Ranieri、Nadia Gruber、Liliana R Orelli
DOI:10.3762/bjoc.13.145
日期:——
allows for the preparation of 3,4- and 1,4-dihydroquinazolines with different substitution patterns from 2-aminobenzylamine (2-ABA) as common precursor. The required functionalization of both amino groups present in 2-ABA was achieved by different routes involving selective N-acylation and cesium carbonate-mediated N-alkylation reactions, avoiding protection/deprotection steps. The heterocycles were efficiently