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 …

Abstract Regioselective photocyclization of 3-alkoxy-6-chloro-4H-chromen-4-ones bearing
thiophen-3-yl moiety at 2-position has been described. These chromenones on irradiation …

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 …

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 …

The effect on photochemical transformations of the substituents present remotely from the
reaction site in 3-benzyloxy-2-(benzo [b] thiophen-2-yl)-4 H-chromen-4-ones has been …

The photo‐irradiation of thienylchromenone resulted in the regioselective cyclization which
is exclusively controlled by the nature of solvent used as reaction medium. Compared to …

The phototransformation of the 3‐cyclohexenyloxychromenones by irradiation with a pyrex‐
filtered light from a 125 W Hg vapor lamp under an inert atmosphere into the spirocyclic …