Transition-metal-free highly efficient synthesis of 2-pyridones from β-keto amides and ynals
作者:Zhengwang Chen、Jiayang Liu、Caiju Jin、Qi Tan、Min Ye
DOI:10.1016/j.tetlet.2019.04.001
日期:2019.5
A convenient and efficient annulation reaction was developed, affording 2-pyridones in good to excellent yields. A variety of substituted β-keto amides and ynals were well tolerated, and especially the transformation produced water as only by-product under transition-metal-free conditions. Furthermore, the conjugated enyneamides were achieved from β-cyano amides and ynals in high yields.