Ethynyl carbonium ions. 1. Reaction of 2.6-diaryl-4-phenylethynylpyrulium perchlorates with oxygen-containing nucleophiles View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1988-07

AUTHORS

A. V. Koblik, L. A. Murad'yan, O. E. Kompan, D. S. Yufit, Yu. T. Struchkov, Yu. A. Zhdanov, L. P. Olekhnovich, G. P. Zolotovskova

ABSTRACT

When 2,6-diaryl-4-phenylethynylpyrylium perchlorates are refluxed in water, methanol, or ethanol, they are converted to monomethinecyanines, the formation of which is explained by hydration of the phenylethynyl group and subsequent [2+2]-cycloaddition of the resulting 2,6-diaryl-4-benzoylmethylenepyrans to the starting pyrylium salt. The corresponding pyridine derivatives were obtained by the action of ammonia and aniline on the monomethinecyanines. The IR and PMR spectra of the compounds and the results of x-ray diffraction analysis of 2,6-diphenyl-4-[1′-(2″,6″-diphenyl-4″-pyranylidene)-2′-phenyl-3′-benzoylallyl]pyridine are presented. More... »

PAGES

725-730

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf00633162

DOI

http://dx.doi.org/10.1007/bf00633162

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1030764290


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