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.

Authors
Varlamov A.V. 1 , Komarova A.I. 1 , Levov A.N. 1 , Savitkina E.V. 1 , Krapivko A.P. 1 , Khrustalev V.N.2 , Sorokina E.A. 1 , Kulikova L.N. 1 , Nikitina E.V. 1 , Zaytsev V.P. 1 , Zubkova F.I. 1
Journal
Russian Chemical Bulletin
Number of issue
5
Language
English
Pages
1014-1022
Status
Published
Link
External link
DOI
10.1007/s11172-010-0198-9
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/
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UNEXPECTED TRANSFORMATION OF SPIRO-3-CYANOMETHYL-3-METHYL- 1,2,3,4,5,6-HEXAHYDROBENZO[F]ISOQUIN- OLINIUM-1,2'-(1',2',3',4'-TETRAHYDRO- NAPHTHALEN-1'-ONE) CHLORIDE TO SPIRO- 3,4,5,6-TETRAHYDRO-2H-BENZO[H]CHROMENE-2, 2'-(TETRAHYDRONAPHTHALEN-1'-ONE)

Article
Soldatova S.A., Soldatenkov A.T., Kotsuba V.E., Khrustalev V.N.
Chemistry of Heterocyclic Compounds. Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau. Vol. 46. 2010. P. 123-124