Reactions of beta-carbonyl-substituted 4H-chromenes and 1H-benzo[f]chromenes with 5-aminopyrazoles
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 beta-carbonyl-substituted 4H-chromenes and their benzo analogs with 5-aminopyrazoles is proposed. A new type of ring-chain tautomer...
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| Главные авторы: | , |
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| Format: | Статья |
| Udgivet: |
Springer
2021
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| Fag: | |
| Online adgang: | https://dspace.ncfu.ru/handle/20.500.12258/18459 |
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