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Pyrimidines

LXIV. Structure and properties of 1,3-diaryldihydrobenzo[f]quinazolines

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

It is shown that the 1,3-diaryldihydrobenzo[f]quinazolines that are formed in the condensation of β-naphthylamine, an aromatic aldehyde, and ammonia are 1,2-dihydro isomers. They readily form salts due to the developing stabilization of the molecule by resonance of the amidinium type. Thus 2,4-dialkylbenzo [f] quinazolinium iodides rather than monoalkyl derivatives were obtained in the case of alkylation with alkyl halides as a result of refluxing the reaction mixtures. The isomeric monoalkylbenzoquinazolinium iodides, the structure of which was proved by the formation of the known benzoquinazolines after treatment with alkali, were also obtained.

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See [1] for communication LXIII.

Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1259–1264, September, 1978.

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Mikhaleva, M.A., Chernikova, G.N. & Mamaev, V.P. Pyrimidines. Chem Heterocycl Compd 14, 1019–1024 (1978). https://doi.org/10.1007/BF00509564

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  • DOI: https://doi.org/10.1007/BF00509564

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