| ORIGINAL ARTICLE | |
1. |
Photo-rearrangements of some 3-allyloxy-2-phenyl-chromones: Synthesis of vinyl substituted benzopyronopyranes Rupesh Kumar and Mohamad Yusuf , Org. Commun. (2008), 1:3; 39-47 Department of Chemistry, Punjabi University , Patiala 147002, India Abstract: Photochemical reactions of some 3-allyloxy-2-phenylchromones have been studied. Photoreactions of the compounds afforded substituted pyronopyrane derivatives through the 1,4-biradicals. Keywords : Photo-cyclisation; H-abstraction; allyloxychromones; photoreactivity |