Flavonoids and their photochemical transformations play an important role in biological
processes in nature. Synthetic photochemistry allows access to molecules that cannot be …

Background: The chemists have been interested in light as an energy source to induce
chemical reactions since the beginning of the scientific chemistry. This review summarizes …

Abstract The flavone ligands 8‐chloro‐2‐tetrahydrofuryl‐1, 4‐benzopyrone and 8‐chloro‐2‐
(2‐methyltetrahydrofuryl)‐1, 4‐benzopyrone have been used to prepare the first examples of …

Xanthenones constitute one of the most important classes of the naturally occurring organic
compounds produced by many microorganisms. They exhibit many biological activities eg …

Chalcones are important intermediates for the synthesis of many flavones and chromones
molecules. A fast and very rapid procedure is reported for the synthesis of chalcones from …

Photochemistry has tremendous applications in the synthetic organic chemistry. The
photochemical behaviors of compounds containing carbonyl chromophores are most widely …

Abstract Phototransformation of 2-(thiophen-3-yl)-4H-chromen-4-ones bearing propynyloxy
moiety at 3-position has been described. These chromenones on photolysis by the pyrex …

Recent advances in the photophysics of two different type of organic (conjugated and
hydrophobically modified) polymers are reviewed. Three major issues are considered in this …

Irradiation of a methanolic solution of 3-alkoxy-6-chloro-2-{(E)-1′-methyl-2′-phenylvinyl}-4-
oxo-4H-1-benzopyrans yielded 12H-benzo [a] xanthen-12-one, pyranopyrones …

Abstract Photo‐irradiation of 2‐(5‐methylthiophen‐2‐yl)‐3‐[(naphthalen‐2‐yl) methoxy]‐4H‐
chromen‐4‐ones yielded the fascinating angular tetracyclic products via cyclization …