Communications
Synthesis of new heterylmethylidene derivatives of isomeric imidazo[4,5-e]thiazolo-fused [1,2,4]triazines
M. E. Lugovoia,
A. N. Izmest’evab,
N. G. Kolotyrkinab,
E. S. Izmalkovab,
A. N. Kravchenkob,
G. A. Gazievab a National University of Science and Technology 'MISIS',
Moscow, Russian Federation
b N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation
Аннотация:
Novel 6-heterylmethylidene-3a,9a-diphenylimidazo[4,5-
e]-thiazolo[3,2-
b][1,2,4]triazines were synthesized by the three-component condensation of imidazo[4,5-
e][1,2,4]triazine-3-thione derivative with bromoacetic acid and hetero-aromatic aldehydes. The following MeONa-induced skeletal rearrangement gave the recyclized isomeric products,
viz. 7-heterylmethylidene-3a,9a-diphenylimidazo-[4,5-
e]thi azolo[2,3-
c][1,2,4]triazines.
Ключевые слова:
heteroaromatic aldehydes, thiazolidin-4-ones, 1,2,4-triazines, skeletal rearrangement, imidazothiazolotriazines, imidazo[4,5-
e][1,2,4]triazine-3-thiones.
Язык публикации: английский
DOI:
10.1016/j.mencom.2024.06.029