36725-29-8Relevant academic research and scientific papers
Selective Reduction of Pyridazin-3-ones and Ring Contraction to Pyrrolidin-2-ones and 3-Pyrrolin-2-ones
Brown, George R.,Foubister, Alan J.,Wright, Brian
, p. 1373 - 1374 (1984)
Reduction of pyridazin-3-ones (1a-d) with zinc dust in acetic acid affords selectively 4,5-dihydropyridazin-3-ones (2a-d), but N(2)-substituted (1) react further with excess of zinc to give equal amounts of pyrrolidin-2-ones (3) and 3-pyrrolin-2-ones (4).
