Chem. J. Chinese Universities ›› 1989, Vol. 10 ›› Issue (9): 948.

• Articles • Previous Articles     Next Articles

NMR Study of Isomers Characteristics of 1-Phenyl-3-methyl-4-benzoylpyrazolone-(5) in Solvents

Feng Anchun, Song Yuan, Wan Guojiang, Gu Yidong   

  1. Department of Chemistry, Fudan University, Shanghai
  • Received:1988-01-05 Online:1989-09-24 Published:1989-09-24

Abstract: The presence of enol form of l-phenyl-3-methyJ-4-benzoylpyrazolone(5) (PMBP) with an endocyclic intramolecular hydrogen bond elucidated by NMRstudy in Cl4 or CHCl3 was established.No reaction of the chelate-proton of enol form with water was shown,but exchange ability was quite active.

Key words: NMR, 1-Phenyl-3-methyl-4-benzoylpyrazolone(5), Isomer

TrendMD: