Published data on the methods of preparation of pyrazolopyrazoles are summarized and described systematically. The title compounds are subdivided according to the position of fusion between the 2 pyrazole rings.
Pyrazoles, pyrazolo[1, 2-a]pyrazoles, pyrazolo[3, 4-c]pyrazoles, pyrazolo[4, 3-c] pyrazoles
KHIDRE, RIZK ELSYAD; MOHAMED, HANAN AHMED; and ABDELWAHAB, BAKR FATHY
"Advances in the chemistry of pyrazolopyrazoles,"
Turkish Journal of Chemistry: Vol. 37:
1, Article 1.
Available at: https://journals.tubitak.gov.tr/chem/vol37/iss1/1