Synthesis of Bicyclic Pyridones via Cyclocondensation of Heterocyclic Ketene Aminals with β-Ketoester Enol Tosylates
作者:Jun Lin、Sheng-Jiao Yan、Yan-Fei Niu、Rong Huang
DOI:10.1055/s-0029-1217984
日期:2009.10
A series of novel bicyclic pyridones were easily prepared by cyclic condensation of heterocyclic ketene aminals with β-keto ester enol tosylates in the presence of a base to give products in excellent yields (80-95%).
在碱的存在下,通过杂环烯酮胺醛与 β-
酮酯烯醇
甲苯磺酸酯的环缩合反应,可以很容易地制备一系列新型双环
吡啶酮,以优异的产率 (80-95%) 得到产物。