Reactions of β-Carbonyl-Substituted 4H-chromenes and 1H-benzo[f]Chromenes with 5-aminopyrazoles View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2021-03-25

AUTHORS

Vitaly А. Osyanin, Dmitry V. Osipov, Kirill S. Korzhenko, Oleg P. Demidov, Yuri N. Klimochkin

ABSTRACT

A method for the preparation of pyrazolo[1,5-a]pyrimidines containing a 2-hydroxybenzyl or (2-hydroxynaphthalen-1-yl)methyl group in position 6 based on the reaction of β-carbonyl-substituted 4H-chromenes and their benzo analogs with 5-aminopyrazoles is proposed. A new type of ring-chain tautomerism with the participation of 7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidines was discovered.

PAGES

305-313

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s10593-021-02908-4

DOI

http://dx.doi.org/10.1007/s10593-021-02908-4

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1136660649


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