1-R-2-[(1E,3E)-4-Aminobuta-1,3-dien-1-yl]-1H-benzimidazoles. Synthesis and some transformations

7-Nitropyridobenzimidazolium salts are cleaved with secondary amines to form 2-[(E,E)-4-aminobuta-1,3-dienyl]-1H-benzimidazoles. The latter react with dimethyl acetylene-dicarboxylate to yield 4a-[(E,Z,E)-6-amino-4,5- dimethoxycarbonylhexa-1,3,5-trien-1-yl]-1,2,3,4-tetra(methoxycarbonyl)-4a, 5-dihydropyrido[1,2-a]benzimidazoles. © 2010 Springer Science+Business Media, Inc.

Editors
-
Publisher
-
Number of issue
5
Language
English
Pages
1014-1022
Status
Published
Department
-
Number
-
Volume
59
Year
2010
Organizations
  • 1 Peoples' Friendship University of Russia, 6 ul. Miklukho-Maklaya, Moscow 117198, Russian Federation
  • 2 A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, Moscow 119991, Russian Federation
Keywords
1H-benz-imidazole; 4-aminobuta-1,3-diene; Cleavage of pyridobenzimidazolium salts; Pyrido[1,2-a]benzimidazole
Date of creation
19.10.2018
Date of change
19.10.2018
Short link
https://repository.rudn.ru/en/records/article/record/2786/