Synthesis of new 4-oxo-1,2,3,4-tetrahydropyrazolo[5,1-с][1,2,4]triazines
Russian Chemical Bulletin, ISSN: 1573-9171, Vol: 67, Issue: 8, Page: 1487-1491
2018
- 10Citations
- 2Captures
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Article Description
Alkylation of 7-amino-3-tert-butyl-4-oxo-4,6-dihydropyrazolo[5,1-c][1,2,4]triazine-8-carbonitrile led to N-substituted derivative, which upon treatment with NaH and MeI in DMF was converted to 1-benzyl-3-tert-butyl-7-dimethylamino-4-oxo-1,4-dihydropyrazolo-[5,1-c][1,2,4]triazine-8-carbonitrile. The latter reacted with Grignard reagents to give high yields of new 3-tert-butyl-3-R-4-oxo-1,2,3,4-tetrahydropyrazolo[5,1-c][1,2,4]triazines (R = Alk, Ph). The reaction course and conditions were studied, and spectral characteristics of the products are discussed.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85055344961&origin=inward; http://dx.doi.org/10.1007/s11172-018-2244-y; http://link.springer.com/10.1007/s11172-018-2244-y; http://link.springer.com/content/pdf/10.1007/s11172-018-2244-y.pdf; http://link.springer.com/article/10.1007/s11172-018-2244-y/fulltext.html; https://dx.doi.org/10.1007/s11172-018-2244-y; https://link.springer.com/article/10.1007/s11172-018-2244-y
Springer Science and Business Media LLC
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