• pyran
  • Benzopyran is an polycyclic organic compound that results from the fusion of a benzene ring to a heterocyclic pyran ring. (wikipedia.org)
  • Commonly, benzopyran is encountered in the reduced state, in which it is partially saturated with one hydrogen atom, introducing a tetrahedral CH2 group in the pyran ring. (wikipedia.org)
  • Benzopyrans (also called chromenes), bicyclic heterocyclic systems consisting of a benzene ring fused to a heterocyclic pyran ring, constitute a privileged structure in medicinal chemistry. (sigmaaldrich.com)
  • In addition, chromone (a derivative of benzopyran with a substituted keto group on the pyran ring), dinorxanthane sesquiterpene, and other substances isolated from T. (thefreedictionary.com)
  • Chromone (or 1,4-benzopyrone) is a derivative of benzopyran with a substituted keto group on the pyran ring. (wikipedia.org)
  • similar
  • The unpaired electron is delocalized over the whole benzopyran molecule, rendering it less reactive than one would expect otherwise, a similar example is the cyclopentadienyl radical. (wikipedia.org)