An efficient large-scale synthesis of alkyl 5-hydroxy-pyridin- and pyrimidin-2-yl acetate
作者:Rémy Morgentin、Frédéric Jung、Maryannick Lamorlette、Mickaël Maudet、Morgan Ménard、Patrick Plé、Georges Pasquet、Fabrice Renaud
DOI:10.1016/j.tet.2008.11.064
日期:2009.1
of methyl 2-(5-hydroxy-3-methoxypyridin-2-yl)acetate and alkyl 2-(5-hydroxypyrimidin-2-yl)acetate is described. Methodology for an efficient access to 5-hydroxy-pyridin- and pyrimidin-2-yl acetate cores has been developed. Based on the difference in halogen reactivity, 5-bromo-2-chloropyridine and its pyrimidine analogue were functionalized judiciously by SNAr and palladium-catalyzed reactions. The
描述了2-(5-羟基-3-甲氧基吡啶-2-基)乙酸甲酯和2-(5-羟基嘧啶-2-基)乙酸烷基酯的合成。已经开发出有效获得5-羟基吡啶和乙酸嘧啶-2-基乙酸盐核心的方法。根据卤素反应性的差异,通过S N Ar和钯催化的反应将5-溴-2-氯吡啶及其嘧啶类似物适当地官能化。概述的策略提供了适用于这些化合物大规模合成的高产途径,并为潜在快速获得其他杂环类似物铺平了道路。