Design, Synthesis and Structural Confirmation of a Series of 2-(Thiophen-2-yl)- 4H-chromen-3-yl-sulfonate Derivatives and Preliminary Investigation of Their Antioxidant and Anticancer Potentials
Design, Synthesis and Structural Confirmation of a Series of 2-(Thiophen-2-yl)- 4H-chromen-3-yl-sulfonate Derivatives and Preliminary Investigation of Their Antioxidant and Anticancer Potentials
Photochemical Transformations of Some 2-(5-Methylthiophen-2-yl)-3-[(naphthalen-2-yl)methoxy]-4H-chromen-4-ones Involving Type-II Process
作者:Ramesh C. Kamboj、Dinesh Kumar、Geeta Sharma、Rita Arora
DOI:10.1002/cjoc.201190151
日期:2011.4
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 involving both 2-thienyl ring and naphthylmethoxy group via 1,4-biradical generated in the Norrish type-II process. The stereochemical dispositions of the products were determined by MM2 energy minimized programme and spectroscopic analysis.