Spin trapping of alkoxyl radicals generated from 5-methyl and 5-aryl-3-alkoxy-4-methylthiazole-2 (3H)-thiones in photochemically induced and microwave-initiated …

A Groß, N Schneiders, K Daniel, T Gottwald, J Hartung

Index: Gross, Andreas; Schneiders, Nina; Daniel, Kristina; Gottwald, Thomas; Hartung, Jens Tetrahedron, 2008 , vol. 64, # 48 p. 10882 - 10889

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Citation Number: 8

Abstract

Methoxyl and isopropoxyl radicals were generated from N-alkoxy-4, 5-dimethylthiazole-2 (3H)-thiones (λmax∼ 320nm) and 5-aryl derivatives (aryl= p-XC6H4; X= MeO, H, AcNH, Cl)(λmax∼ 335nm) in photochemically and microwave-induced reactions. Alkoxyl radicals were trapped with dimethylpyrrolidine N-oxide and characterized as spin adducts via EPR. Cumyloxyl radicals were liberated in a similar manner from N-cumyloxy-5-(4- ...