Conclusions
The reaction of 3-nitro-4,5-dihydro-6H-1,2-oxazine N-oxide with acetylenes in methanol is accompanied by cleavage of the nitro group and leads to the formation of theα-methoxy-3-substituted 4,5-dihydro-6H-1,2-oxazine derivatives.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 2, pp. 382–386, February, 1974.
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Chlenov, I.E., Sokolova, I.L., Khasapov, B.N. et al. Reaction of 3-nitro-4,5-dihydro-6H-1,2-oxazine N-oxide with acetylenes. Russ Chem Bull 23, 347–351 (1974). https://doi.org/10.1007/BF00924685
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DOI: https://doi.org/10.1007/BF00924685