Construction of 3,4-dihydro-1,2-diazete ring through 4π electron cyclization of 4-hydroxy-2-oxo-2<i>H</i>chromene-3-carbaldehyde [(1<i>E</i>)-arylmethylene] hydrazone
作者:Akshay M. Pansuriya、Mahesh M. Savant、Chirag V. Bhuva、Jyoti Singh、Naval Kapuriya、Yogesh T. Naliapara
DOI:10.1002/jhet.347
日期:——
A new, short and efficient synthesis of 4‐hydroxy‐3‐(4‐aryl‐3,4‐dihydro‐1,2‐diazet‐3‐yl)‐2H‐chromen‐2‐one is described in which the 3,4‐dihydro‐1,2‐diazete ring is constructed from arylmethylene hydrazone by 4πelectroncyclization as per electrocyclic reaction. J. Heterocyclic Chem., (2010).