Chemistry of Heterocyclic Compounds p. 746 - 750 (1988)
Update date:2022-09-26
Topics:
Zolotoi, A. B.
El'natanov, Yu. I.
Chervin, I. I.
Konovalikhin, S. V.
D'yachenko, O. A.
et al.
X-ray diffraction and NMR spectral examination have shown that 1-phenyl-3-methyl-2-pyrazolin-5-one reacts with methyl acrylate in methanol to give spiro<(1-phenyl-3-methyl-2-pyrazolin-5-one)-4,5'-butyrolactone>.The conformation has been shown to be the sa
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