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Novel photochemical transformation of 4-methyl-2′-hydroxyisoflavenes to benzofuro[3,2-b] benzofurans
Date Issued
01-01-1983
Author(s)
Ramakanth, S.
Rao, Usha
Narayanan, K.
Balasubramanian, K. K.
Abstract
The photolysis of 4-methyl-3-(2-hydroxyphenyl)chrom-3-enes (1) in methanol at 300 nm affords 4b,9b-dihydro-4b,9b-dimethyl benzofuro [3,2-b] benzofurans (2), in good yield and the reaction rate is accelerated by sodium methoxide. © Royal Society of Chemistry.