Synthesis p. 805 - 809 (1995)
Update date:2022-07-30
Topics:
Jonsson
Kristinsson
Nussbaumer
Skulason
Winkler
The title compounds 1 undergo a ring rearrangement with hydroxylamine, hydrazines and acidic aqueous medium leading to isoxazoles 3, pyrazoles 5-7 and pyrazolones 10, respectively. The structure of some title compounds reported in the literature are revis
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