Microwave-Assisted and Iodine-Catalyzed Synthesis of Dihydropyrimidin-2-thiones via Biginelli Reaction Under Solvent-Free Conditions
作者:Qingjian Liu、Ning Pan、Jiehua Xu、Wenwen Zhang、Fanpeng Kong
DOI:10.1080/00397911.2011.593289
日期:2013.1.1
Abstract Microwave-assistedsynthesis of 3,4-dihydropyrimidin-2-thiones via Biginelli reaction from aldehydes, acetoacetates, and thiourea in the presence of iodine undersolvent-freeconditions has been accomplished in good yields and purity without chromatographic separation. GRAPHICAL ABSTRACT
Dehydrosulfurative C–N Cross-Coupling and Concomitant Oxidative Dehydrogenation for One-Step Synthesis of 2-Aryl(alkyl)aminopyrimidines from 3,4-Dihydropyrimidin-1<i>H</i>-2-thiones
作者:Nguyen Huu Trong Phan、Hyeji Kim、Hyunik Shin、Hee-Seung Lee、Jeong-Hun Sohn
DOI:10.1021/acs.orglett.6b02617
日期:2016.10.7
A method for the synthesis of 2-aryl(alkyl)aminopyrimidinesfrom readily available 3,4-dihydropyrimidin-1H-2-thiones (DHPMs) via dehydrosulfurative C–N cross-coupling and concomitant oxidative dehydrogenation under a Pd/Cu catalytic system is described. This reaction protocol provides unprecedented diversity of fully substituted 2-aryl(alkyl)aminopyrimidines in a single step from a wide range of DHPMs
一种在Pd / Cu催化体系下通过脱硫C–N交叉偶联和伴随的氧化脱氢从容易获得的3,4-二氢嘧啶-1 H -2-硫酮(DHPM)合成2-芳基(烷基)氨基嘧啶的方法描述。该反应方案只需一步即可从多种DHPM和胺偶联伙伴中提供前所未有的完全取代的2-芳基(烷基)氨基嘧啶多样性。