Photoinduced [4+2] cycloaddition reactions of benzo[b]thiophene-2,3-dione with alkenes

Photoinduced [4+2] cycloaddition reactions of benzo[b]thiophene-2,3-dione with alkenes [4 + 2]-Photocycloadditions of benzo[b]thiophene-2,3-dione with electron-rich and electron-deficient alkenes have been described. Olefins preferentially add at both carbonyl groups to give the head-to-head [4 + 2] cycloadducts, i.e., dioxanes only. Comprehensive molecular orbital calculations at DFT-B3LYP level have been carried out to address the mechanism as well as regiochemical course of the reaction. Research on Chemical Intermediates Springer Journals

Photoinduced [4+2] cycloaddition reactions of benzo[b]thiophene-2,3-dione with alkenes

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Springer Netherlands
Copyright © 2011 by Springer Science+Business Media B.V.
Chemistry; Catalysis; Inorganic Chemistry; Physical Chemistry
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