Photochemistry of alkyl esters of benzoylformic acid

…, A Zanocco, LC Stewart, JC Scaiano

Index: Encinas, M. V.; Lissi, E. A.; Zanocco, A.; Stewart, L. C.; Scaiano, J. C. Canadian Journal of Chemistry, 1984 , vol. 62, p. 386 - 391

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Citation Number: 24

Abstract

The photodecomposition of several alkylbenzoylformates has been examined using quantum yield and laser flash photolysis techniques. The Norrish Type II reaction is a major triplet deactivation path in all substrates having γ-hydrogen atoms. Representative triplet lifetimes are 670, 500, and 310 ns, for the methyl, ethyl, and isopropyl esters, respectively, in 1: 4 chlorobenzene: n-heptane at 298 K. Product studies suggest that several competing ...