Synthesis of poly-[benz-(di-(pyrimido-benzimidazoles))] by combined reductive polyheterocyclization

Autor: D. S. Tugushi, V.V. Korshak, M.V Tsotadze, A.L. Rusanov, L. G. Kipiani
Rok vydání: 1986
Předmět:
Zdroj: Polymer Science U.S.S.R.. 28:2028-2033
ISSN: 0032-3950
DOI: 10.1016/0032-3950(86)90357-6
Popis: Poly-[benz-(di-(pyrimidobenzimidazoles))] have been synthesized by the method of combined reductive polyheterocyclization based on the interaction of 4,6-dinitroisophthalic acid dichloride with bis-((o-nitro)anilines), conversion of the o-nitro-substituted polyamides obtained to poly-((o-amino)benzimidazoles), benzoylation of the latter via the free amino groups and catalytic cyclodehydration of the poly-((o-benzamido)benzimidazoles) formed. The synthesized poly-[benz-(di-(pyrimidobenzimidazoles))] possess raised solubility in organic solvents.
Databáze: OpenAIRE