Abstract
Oxidation of 2′-hydroxy-3′-nitrochalcones with thallium(III) nitrate gives (Z)-2-phenylmethylene-7-nitrobenzofuran-3(2H)-one derivatives, rather than the more usual 1,2-diaryl-3,3-dimethoxypropan-1-ones or the corresponding isoflavones.
Zusammenfassung
Die Oxidation von 2′-Hydroxy-3′-nitrochalconen mit Thallium(III)nitrat ergab (Z)-2-Phenylmethylen-7-nitro-3(2H)-benzofuranon-Derivate und nicht die üblichen 1,2-Diaryl-3,3-dimethoxypropan-1-one bzw. die entsprechenden Isoflavone.
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Varma, R.S., Varma, M. Oxidative cyclisation of chalcones with thallium(III)nitrate: Synthesis of (Z)-2-phenylmethylene-7-nitro-3(2H)-benzofuranones. Monatsh Chem 113, 1469–1473 (1982). https://doi.org/10.1007/BF00808946
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DOI: https://doi.org/10.1007/BF00808946