1,3-DIPOLAR CYCLOADDITION REACTIONS OF SOME 1-ARYL-PYRIDINIUM-3-OLATES


CELEBI N., CETINER O., GULEC A., TURKER L.

BULLETIN DES SOCIETES CHIMIQUES BELGES, vol.102, no.7, pp.467-477, 1993 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 102 Issue: 7
  • Publication Date: 1993
  • Doi Number: 10.1002/bscb.19931020706
  • Title of Journal : BULLETIN DES SOCIETES CHIMIQUES BELGES
  • Page Numbers: pp.467-477

Abstract

In this study, the reactivities of 1-(2,4-dinitrophenyl)-, 1-(4,6-dimethylpyrimidin-2-yl)-, and 1-(5-nitro-2-pyridyl)-pyridinium-3-olates were tested upon various inductively and mesomerically electron rich dipolarophiles. N-substituted pyridinium-3-olates react across the 2,6-positions with 2pi-dipolarophiles whereas 4pi-dipolarophiles added across both 2,6 and 2,4 positions of the betaines.