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Resourceful synthesis of pyrazolo[1,5-a]pyrimidines under ultrasound irradiation

✍ Scribed by Buriol, Lilian; München, Taiana S.; Frizzo, Clarissa P.; Marzari, Mara R.B.; Zanatta, Nilo; Bonacorso, Helio G.; Martins, Marcos A.P.

Book ID: 120346292
Publisher: Elsevier Science
Year: 2013
Tongue: English
Weight: 342 KB
Volume: 20
Category: Article
ISSN: 1350-4177
DOI: 10.1016/j.ultsonch.2013.02.006

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## Abstract While 3(5)‐aminopyrazole reacts with enaminonitrile to yield pyrazolo[1,5‐__a__]pyrimidines, 3‐amino‐5‐pyrazolone reacts with the same reagents to yields pyrazolo[3,4‐__b__]pyridines.