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Synthesis and autooxidative transformation of 2-(2-aminophenyl)-4-hydroxy-3-phenyl-1-isoquinolone

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

2-(2-Aminophenyl)-4-hydroxy-3-phenyl-1-isoquinolone was unexpectedly obtained in the reaction of 3-(α-bromobenzyl)-3-bromophthalide with o-phenylenediamine. The isoquinolone in chloroform undergoes autooxidation by air oxygen to give 2-(2-aminophenyl)-3-hydroperoxy-3-phenyl-1,4-dioxo-1,2,3,4-tetrahydroisoquinoline, which is subsequently converted to N-(2-benzamidophenyl)phthalimide. A mechanism is proposed for the rearrangement of the hydroperoxide.

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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 1, pp. 83–87, January, 1982.

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Valter, R.É., Batse, A.É. & Valter, S.P. Synthesis and autooxidative transformation of 2-(2-aminophenyl)-4-hydroxy-3-phenyl-1-isoquinolone. Chem Heterocycl Compd 18, 70–74 (1982). https://doi.org/10.1007/BF00513293

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  • DOI: https://doi.org/10.1007/BF00513293

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