Photochemical reactions of alkoxy-containing-alkyl phenylglyoxylates: remote hydrogen abstraction
作者:Shengkui Hu、D. C. Neckers
DOI:10.1039/a700948h
日期:——
A series of alkoxy-containing-alkyl phenylglyoxylates have been
synthesized and their photochemical reactions studied. The intention was
to probe structural requirements for remote hydrogen abstraction.
Products resulting from 1,10- and 1,11-hydrogen abstraction were
isolated from the photochemical reactions of 4′-methoxybutyl
phenylglyoxylate 3d and 5′-benzyloxypentyl phenylglyoxylate 3h
respectively. Products resulting from Norrish Type II and intermolecular
hydrogen abstraction reactions were also isolated. Triplet lifetimes of
representative compounds were measured by laser flash photolysis.
我们合成了一系列含烷氧基的烷基苯基乙醛酸酯,并研究了它们的光化学反应。分别从 4′-甲氧基丁基苯基乙醛酸酯 3d 和 5′-苄氧基戊基苯基乙醛酸酯 3h 的光化学反应中分离出了 1,10- 和 1,11- 氢抽取产物。此外,还分离出了诺里什 II 型反应和分子间氢抽离反应产生的产物。用激光闪烁光解法测量了代表性化合物的三重寿命。