Oxidative Cyclisation of Chalcones with Thallium(III)-Nitrate: Synthesis of (Z)-2-Phenylmethylene-7-nitro-3(2H)-benzofuranones

Article abstract of DOI:10.1007/BF00808946

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. - Keywords: Oxidat