Regioselective synthesis of 2-arylidene coumaran-3-ones by dye-sensitized photooxygenation of 2-hydroxyphenyl-styrylketones in the presence of sodium dodecyl sulphate

Article abstract of DOI:10.1016/S0040-4020(01)81970-0

2′-Hydroxyphenylstyrylketones when subjected to dye- sensitized photooxygenation in the presence of sodium dodecylsulphate (8x × 10^-3M) in methanol, yielded the corresponding oxidatively cyclized products, i.e., 2-aryl idenecoumaran 3-ones and