Laser Flash Photolysis Studies of Alkoxyl Radical Kinetics Using 4-Nitrobenzenesulfenate Esters as Radical Precursors
作者:John H. Horner、Seung-Yong Choi、Martin Newcomb
DOI:10.1021/ol006469g
日期:2000.10.1
4-Nitrobenzenesulfenate esters were used as precursors for the generation of alkoxyl radicals under laser flash photolysis conditions. The esters were efficiently cleaved using the Nd:YAG third harmonic (355 nm) to produce alkoxyl radicals and the 4-nitrobenzenethiyl radical. Rate constants for beta-scission and 1, 5-hydrogen abstraction reactions of alkoxyl radicals were measured.
4-硝基苯磺酸酯用作在激光闪光光解条件下生成烷氧基自由基的前体。使用Nd:YAG三次谐波(355 nm)有效裂解酯,生成烷氧基和4-硝基苯硫基自由基。测量了β-断裂和1,5-氢氧基烷氧基自由基反应的速率常数。