Regioselective Synthesis of Methyl 2,3-Dihydro-2-aryl Benzofuran-3-Carboxylates Using Thallium(III) Nitrate

Mahavir S. Khanna Department of Chemistry, Kurukshetra University, Kurukshetra, 132119, INDIA

Om V. Singh Department of Chemistry, Kurukshetra University, Kurukshetra, 132119, INDIA

Chandra P. Garg Department of Chemistry, Kurukshetra University, Kurukshetra, 132119, INDIA

Ram. P. Kapoor Department of Chemistry, Kurukshetra University, Kurukshetra, 132119, INDIA

Abstract

Flavanones (1a–d) undergo smooth ring contraction with thallium(III) nitrate in presence of perchloric acid and trimethyl orthoformate resulting in the formation of methyl 2,3-dihydro-2-arylbenzofuran-3-carboxylates (2a–d) in good yields. The mechanism of this oxidation has also been discussed.

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Regioselective Synthesis of Methyl 2,3-Dihydro-2-aryl Benzofuran-3-Carboxylates Using Thallium(III) Nitrate

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Regioselective Synthesis of Methyl 2,3-Dihydro-2-aryl Benzofuran-3-Carboxylates Using Thallium(III) Nitrate

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