Synthesis of substituted benzofurans by condensation of arylglyoxals with enols and phenols

Yu. О. Gorbunov; А. N. Komogortsev; V. S. Mityanov; B. V. Lichitskii; A. A. Dudinov; K. A. Lyssenko; М. М. Krayushkin

doi:10.1007/s11172-018-2101-z

Synthesis of substituted benzofurans by condensation of arylglyoxals with enols and phenols

Authors: Gorbunov Y.О.¹, Komogortsev А.N.¹, Mityanov V.S.¹^,2, Lichitskii B.V.¹, Dudinov A.A.¹, Lyssenko K.A.³, Krayushkin М.М.¹
Affiliations:
1. N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences
2. D. I. Mendeleev University of Chemical Technology of Russia
3. A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences
Issue: Vol 67, No 3 (2018)
Pages: 504-509
Section: Full Articles
URL: https://journal-vniispk.ru/1066-5285/article/view/242336
DOI: https://doi.org/10.1007/s11172-018-2101-z
ID: 242336

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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.