Ultrasound aided solvent-free synergy: an improved synthetic approach to access 3,4-dihydropyrimidin-2(1H)-ones
作者:Rathinam Ramesh、Samikannu Ramesh、Jan Grzegorz Malecki、Appaswami Lalitha
DOI:10.1007/s13738-019-01597-3
日期:2019.6
simple synthetic method has been described for the access of structurally diverse 3,4-dihydropyrimidin-2(1H)-ones in excellent yields in the presence of 2,4,6-trichloro-1,3,5-triazine (TCT) as an efficient source of hydrochloric acid under ultrasound radiation. In this tandem reaction, a range of aldehydes, β-diketo esters and urea were made to condense together via one-pot, solvent-free synthetic strategy
摘要已经描述了一种非常简单的合成方法,用于在2,4,6-三氯-1,3,5-三嗪(存在下)以优异的产率获得结构多样的3,4-二氢嘧啶-2(1 H)- TCT)作为超声辐射下盐酸的有效来源。在此串联反应中,通过一锅无溶剂合成策略,使一系列醛,β-二酮酯和尿素缩合在一起。使用无金属催化剂,易于获得的基材,高生产率和易于后处理是该方案的必要特征。 图形概要