Journal of heterocyclic chemistry

Synthesis of dimethoxy??and dioxano??annellated benzofuroxans from o??dinitroarenes

SV Eswaran, SK Sajadian

文献索引：Eswaran, S. V.; Sajadian, S. K. Journal of Heterocyclic Chemistry, 1988 , vol. 25, p. 803 - 806

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被引用次数: 9

摘要

Abstract Thermolysis of 4, 5-dinitroveratrole 1a in the presence of sodium azide and dimethylsulfoxide gives the new 5, 6-dimethoxybenzofuroxan, 2a, whereas 3, 4, 5- trinitroveratrole led to the new 5 (7), 6-dimethoxy-4-nitrobenzofuroxans 2e, 3e via a nucleophilic substitution of a nitro group by azide ion and pyrolytic ring closure. This method provides a simpler route to the known 1, 3-benzodioxano [5, 6-c] furoxan, 2b and 1, 4- ...