REDOX TRANSFORMATION OF ADDUCTS FROM CYCLOADDITION OF DIAZOACETIC ESTER TO β-ARYLACRYLOYLOXIRANES

Authors

  • С. Г. Михалёнок Belarus State Technical University, Minsk 220050
  • Н. М. Кузьменок Belarus State Technical University, Minsk 220050
  • А. М. Звонок Belarus State Technical University, Minsk 220050

DOI:

https://doi.org/10.1007/8211

Keywords:

β-arylacryloyloxiranes, diazoacetic ester, 4, 5-dihydro-1H-pyrazoles, 1, 3-dipolar cycloaddition, spectral characteristics

Abstract

It was established that, in addition to ethyl 4-aryl-3-(2,3-epoxyalkanoyl)-4,5-dihydro-1H-pyrazole-5-carboxylates, the reaction of diazoacetic ester with β-arylacryloyloxiranes also gives ethyl 4-aryl-3(5)-(3-hydroxy-2-methylalkanoyl)-1H-pyrazole-5(3)-carboxylates. The latter are formed from the tautomeric ethyl 4-aryl-5-(2,3-epoxyalkanoyl)-4,5-dihydro-1H-pyrazole-3-carboxylates as a result of intramolecular oxidative–reductive disproportionation.

How to Cite
Mikhalenok, S. G.; Kuz'menok, N. M.; Zvonok, A. M.  Chem. Heterocycl. Compd. 2005, 41, 977. [Khim. Geterotsikl. Soedin. 2005, 1150.]

For this article in the English edition, see DOI 10.1007/s10593-005-0264-7


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Published

2023-10-27

Issue

No. 8 (2005)

Section

Original Papers