Novel photochemical transformation of 4-methyl-2′-hydroxyisoflavenes to benzofuro [3,2-b]benzofurans
作者:S. Ramakanth、Usha Rao、K. Narayanan、K. K. Balasubramanian
DOI:10.1039/c39830000842
日期:——
The photolysis of 4-methyl-3-(2-hydroxyphenyl)chrom-3-enes(1) in methanol at 300 nm affords 4b,9b-dihydro-4b, 9b-dimethylbenzofuro[3, 2-b]benzofurans (2), in good yield and the reaction rate is accelerated by sodium methoxide.
4-甲基-3-(2-羟苯基)chrom-3-enes(1)在甲醇中于300 nm处光解得到4b,9b-dihydro-4b,9b-二甲基苯并呋喃[3,2- b ]苯并呋喃(2) ,收率好,甲醇钠可加快反应速度。