作者:Joshi M. Ramanjulu、Michael P. DeMartino、Yunfeng Lan、Robert Marquis
DOI:10.1021/ol100624p
日期:2010.5.21
A novel, one-step method for the synthesis of tri- and tetrasubstituted pyrimidin-4-ones is reported. This method involves a titanium(IV)-mediated cyclization involving two sequential condensations of primary and β-ketoamides. The reaction is operationally facile, readily scalable, and offers rapid entry into differentially substituted pyrimidin-4-one scaffolds. The high functional group compatibility
报道了一种新颖的一步法合成三和四取代的嘧啶-4-酮的方法。该方法涉及钛(IV)介导的环化,涉及伯胺和β-酮酰胺的两个连续缩合。该反应操作简便,易于扩展,可快速进入差异取代的嘧啶-4-酮骨架。高度的官能团相容性使这种转化产生的产品具有相当大的多样性。