Tetrahedron p. 9393 - 9400 (1998)
Update date:2022-09-26
Topics:
Zimmermann, Diane
Krogsgaard-Larsen, Povl
Ehrhardt, Jean-Daniel
Madsen, Ulf
Janin, Yves L.
2,3-Dihydropyrazolo[3,2-b]oxazoles were used as intermediates in a new method for preparation of N1-methyl-3-hydroxypyrazoles. Synthesis of this bicyclic system was achieved either by alkylation of 3-hydroxypyrazole with 1,2-dibromoethane or, with better
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