Abstract
A convenient method for the synthesis of previously unknown substituted 3-hydroxy-5,5- dimethyl-2-(2-arylbenzofuran-3-yl)cyclohex-2-enones, 4-hydroxy-6-methyl-3-(2-arylbenzofuran- 3-yl)-2H-pyran-2-ones, and 2-hydroxy-3-(2-arylbenzofuran-3-yl) naphthoquinones was developed based on the reaction of 3,4-methylenedioxyphenol or 2-naphthol with pyridinium salts obtained by multicomponent condensation of arylglyoxals with carbo- or heterocyclic enols and 4-dimethylaminopyridine.
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Dedicated to Academician of the Russian Academy of Sciences I. P. Beletskaya.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 3, pp. 0504—0509, March, 2018.
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Gorbunov, Y.О., Komogortsev, А.N., Mityanov, V.S. et al. Synthesis of substituted benzofurans by condensation of arylglyoxals with enols and phenols. Russ Chem Bull 67, 504–509 (2018). https://doi.org/10.1007/s11172-018-2101-z
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DOI: https://doi.org/10.1007/s11172-018-2101-z