4H-Chromenes as 1,3-bielectrophiles in the reaction with 2-aminobenzimidazole: synthesis of pyrimido[1,2-a]benzimidazoles View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2021-05

AUTHORS

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

ABSTRACT

A method for the preparation of pyrimido[1,2-a]benzimidazoles containing a 2-hydroxybenzyl or (2-hydroxynaphthalen-1-yl)methyl group at position 3 was proposed based on the reaction of β-carbonyl-substituted 4H-chromenes and their benzo analogs with 2-aminobenzimidazole. In the case of chromenes substituted in the methylene fragment, 7,13a-dihydro-5H-benzo[5',6']chromeno-[3',2':5,6]pyrimido[1,2-a]benzimidazoles were isolated.

PAGES

588-593

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s10593-021-02947-x

DOI

http://dx.doi.org/10.1007/s10593-021-02947-x

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1138636522


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