Tetrahedron Letters p. 1341 - 1342 (1988)
Update date:2022-08-05
Topics:
Pilling, Garry M.
Bell, Rebecca H.
Johnson, Robert E.
A new general method for synthesizing 1H-pyrazol-4-ols by cyclizing 2-(2-alkylidenehydrazino)acetic acids with acetic anhydride in pyridine is reported.
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(1962)
