Synthesis of 1-Amino-5,6-diaryl-3-cyano-1<i>H</i>-pyridin-2-ones and 6,7-Diaryl-4-cyano-3-hydroxy-1<i>H</i>-[1,2]diazepines from Isoflavones
作者:Mu-Lin Zhu、Zun-Ting Zhang、Dong Xue、Hui-Liang Hua、Yong Liang、Stanislaw F. Wnuk
DOI:10.1002/hlca.201300246
日期:2014.4
The one‐step cyclocondensation of substituted isoflavones (=3‐phenyl‐4H‐1‐benzopyran‐4‐ones) with cyanoacetohydrazide in the presence of KOH afforded a mixture of 1‐amino‐5,6‐diaryl‐3‐cyano‐1H‐2‐pyridin‐2‐ones and 6,7‐diaryl‐4‐cyano‐3‐hydroxy‐1H‐[1,2]diazepines.
在KOH存在的情况下,将取代的异黄酮(= 3-苯基-4 H -1-苯并吡喃-4-酮)与氰基乙酰肼进行一步式环缩合反应可得到1-氨基-5,6-二芳基-3-氰基的混合物1 H -2-吡啶-2-酮和6,7-二芳基-4-氰基-3-羟基-1 H -1,[1,2]二氮杂s。