A comparison of the photochemistry of flavanone with that of flavone originating from their lowest excited triplet states in ethanol

Time-resolved EPR study of the photoreduction of phthalic anhydride and chlorinated phthalic anhydrides in 2-propanol

“…With maleic anhydride, the hydrogen adduct formation is observed even in the absence of these particular compounds [7,8]. In a recent investigation of the photoreduction of flavone, the formation of benzyl radicals by way of keto-enol conversion was reported even in the absence of tri-butyltin hydride, with which it had been observed previously [9,10]. These particular reductants were thought only to be involved in intramolecular conversion but this remains controversial anda more general rationalization of the reaction mechanism is awaited.…”

Recent Advances in Microflow Photochemistry

“…Under batch conditions in ethanol and in the absence of light, flavone 21 remained stable in the presence of NaBH 4 . Earlier studies on the photochemistry of 21 using conventional light sources revealed the preferred formation of photodimers [ 56 ]. Upon irradiation with an excimer laser, however, photoreduction to flavanone 22 , flavanol 23 and ethyl salicylate ( 24 ) was observed instead.…”

Photooxygenation of N-(2-thiazolyl)sulfanilamide, 2-(4-thiazolyl)benzimidazole, and Thiacetazone

“…Photolysis of organic compounds has been a vast field of research since a long time, [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] almost all types of compounds have been studied so far. However there are no reports in the literature on the photolysis of N-(2-thiazolyl)sulfanilamide, 2-(4-thiazolyl)benzimidazole and thiacetazone.…”