Photoaddition Reactions of 1,2-Diketones with Silyl Ketene Acetals. Formation of β-Hydroxy-γ-ketoesters
作者:Dae Won Cho、Hyang-Yeol Lee、Sun Wha Oh、Jung Hei Choi、Hea Jung Park、Patrick S. Mariano、Ung Chan Yoon
DOI:10.1021/jo800473x
日期:2008.6.1
Photochemical reactions taking place between 1,2-diketones and silyl ketene acetals and their excited state reaction mechanisms have been explored. Irradiation of benzene, acetone, or acetonitrile solutions containing 1,2-diketones and silyl ketene acetals is observed to promote formation of 1,4-dioxenes, resulting from [4 + 2]-cycloaddition, oxetanes, arising by Paterno−Buchi processes, and β-hydroxy-γ-ketoesters