Functionalization of substituted 2-(1<i>H</i>)pyridones. II. Synthetic pathways to c-6 modified 3-cyano- and 3-carboxy-2-(1<i>H</i>)pyridones from a common precursor
作者:H. D. Hollis Showalter、John M. Domagala、Joseph P. Sanchez
DOI:10.1002/jhet.5570180825
日期:1981.12
Starting from readily available 1,2-dihydro-6-methyl-2-oxo-3-pyridinecarbonitrile, 1, viable synthetic pathways to a number of C-6 functionalized 1,2-dihydro-2-oxo-3-pyridinecarbonitriles and corresponding acids are presented. Through the utilization of dianion chemistry, the C-6 methyl substituent is selectively functionalized to three different oxidation levels.
从容易获得的1,2-二氢-6-甲基-2-氧-3-吡啶腈开始,到许多C-6官能化的1,2-二氢-2-氧-3-吡啶腈和相应的可行的合成途径提出了酸。通过利用二价阴离子化学,C-6甲基取代基被选择性官能化为三个不同的氧化水平。