Isobutyraldehyde in the Synthesis of Isopropyl-substituted 4H-Pyrans, 1,4-Dihydropyrano[2,3-c]pyrazole, 1,4-Dihydropyridines, and Cyclobutane View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2005-06

AUTHORS

V. D. Dyachenko, A. N. Chernega

ABSTRACT

Condensation of isobutyraldehyde with CH acids, such as acetoacetanilide, dimedone, acetoacetamide, ethyl benzoylacetate, resorcinol, cyanoacetic acid, malononitrile, 3-methyl-1-ethyl-2-pyrazolin-5-one, benzoylacetone, and cyanoacetamide, in the presence of amines gave isopropyl-substituted 4H-pyrans, 1,4-dihydropyrano[2,3-c]pyrazole, 4H-benzo[b]pyranes, 1,4-dihydropyridines, and 1,1-dicyano-2-(1-cyano-1-ethoxycarbonyl)methyl-4-isopropyl-3,3-dimethylcyclobutane. The structure of the latter product was studied by X-ray diffraction analysis.

PAGES

952-960

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s11176-005-0351-6

DOI

http://dx.doi.org/10.1007/s11176-005-0351-6

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1021610718


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