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Article
Reaction of aroylenebenzimidazoles with nucleophilic reagents
The reaction of aromatic mono- and bis(o-phenylenediamines), -(aminophenols), and -(o-aminothiophenols) with mono- and diaroylenebenzimidazoles in polyphosphoric acid was studied. The interrelationship between...
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Article
Syntheses based on bis(β-diketones). Reaction of di(4-acetoacetylphenyl) oxide with amines
The reaction of di(4-acetoacetylphenyl) oxide (I) with β-napthylamine, aniline, 4-aminobiphenyl, and 4-aminodiphenylamine has given the corresponding dianils, and the conditions for their cyclization have been...
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Article
Preparation of polymers by polycyclization
Heating equimolecular amounts of 1, 1, 2, 2, -tetraacetylethane, 1, 1, 3, 3-tetraacetylpropane, 4, 4′-bis(acetoacetyl)diphenyloxide, by and 1, 4-bis(2′, 2′-diacetoethyl)benzene with 4, 4′-dihydrazino-diphenyl ...