Reaction of 3,4-diformyl-2,5-dimethylpyrrole with 1,2(substituted)diphenyl-1,2-diaminoethanes

Ogretir C., Severcan F.

TURKISH JOURNAL OF CHEMISTRY, vol.22, no.2, pp.137-142, 1998 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 22 Issue: 2
  • Publication Date: 1998
  • Journal Name: TURKISH JOURNAL OF CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.137-142
  • Eskisehir Osmangazi University Affiliated: No

Abstract

3,4-Diformyl-2,5-dimethylpyrrole (1) reacts with 1,2-diphenyl-1,2-diamine derivatives to form the potentially tautomeric 2:2 macrocyclic adduct (6)=(7). H-1 and C-13 n.m.r. spectral data along with acidity measurements indicate that the 2-azafulvene structure (7) is predominant for all adducts.