Abstract
6-Cyclopropyl- and 6-(1-methylcyclopropyl)-1,4-benzodioxanes have been synthesized as the first cyclopropyl 1,4-benzodioxanes. It was shown that nitration of these compounds occurs with retention of the three carbon ring. In contrast to simple ethers of cyclopropylphenols, nitration leads only to 7-nitro-6-cyclopropyl- and 7-nitro-6-(1-methylcyclopropyl)-1, 4-benzodioxanes,respectively. Nitration of 7-nitro-6-cyclopropyl-1,4-benzodioxane occurs regioselectively to give exclusively the 7 8-dinitro product. The structure of the nitration products was confirmed by their rearrangement to the corresponding nitrosopropionyl-1,4-benzodioxanes.
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Additional information
M. V. Lomonosov State University, Moscow 119899. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 472–479, April, 1994. Original article submitted February 2, 1994.
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Mochalov, S.S., Kosynkin, D.V., Yudin, I.D. et al. 6-Cyclopropyl- and 6-(1-methylcyclopropyl) 1,4-benzodioxanes: synthesis and nitration. Rearrangement of nitro substituted 6-cyclopropyl-1, 4-benzodioxanes using concentrated sulfuric acid. Chem Heterocycl Compd 30, 413–419 (1994). https://doi.org/10.1007/BF01169933
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DOI: https://doi.org/10.1007/BF01169933