Conclusions
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1.
The rate constants and the enthalpy and entropy of activation for the cycloaddition of 3-phenyl-, 3-methyl-, 3-carbomethoxy-, and 3-nitro-4,5-dihydro-6H-1,2-oxazine N-oxides to methyl acrylate in dioxane were determined.
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2.
The rate constants for the cycloaddition of 3-nitro-4,5-dihydro-6H-1,2-oxazine N-oxide in various solvents were determined.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 3, pp. 579–581, March, 1972.
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Chlenov, I.E., Khudak, V.I. & Tartakovskii, V.A. Kinetics of the 1,3-dipolar cycloaddition of 4,5-dihydro-6H-1,2-oxazines to methyl acrylate. Russ Chem Bull 21, 536–537 (1972). https://doi.org/10.1007/BF00863195
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DOI: https://doi.org/10.1007/BF00863195