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Synthesis and properties of substituted 2-methylene-hydrazono-2,3-dihydro-3-benzo[b]furanones

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

The reaction of 2,3-dihydro-2,3-benzo[b]furandione with the triphenylphosphazines of diazo compounds leads to substituted 2-methylenehydrazono-2,3-dihydro-3-benzo[b]furanones, which are hydrolyzed in an acidic medium to the substituted methylenehydrazides of o-hydroxyphenylglyoxalic acid and react with amines to form the products of addition at the activated CH=N bond of the side chain or 2-hydrazono-2,3-dihydro-3-benzo[b]furanone respectively.

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Correspondence to N. A. Pulina.

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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 817–822, June, 2007.

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Pulina, N.A., Zalesov, V.V. Synthesis and properties of substituted 2-methylene-hydrazono-2,3-dihydro-3-benzo[b]furanones. Chem Heterocycl Compd 43, 685–689 (2007). https://doi.org/10.1007/s10593-007-0111-0

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  • DOI: https://doi.org/10.1007/s10593-007-0111-0

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