A method for the solvent-free photocatalytic conversion of solid and liquid substrates was developed, using a novel rod mill apparatus. In this setup, thin liquid films are realized which is crucial for an effective photocatalytic conversion due to the low penetration depth of light in heterogeneous systems. Several benzylic alcohols were oxidized with riboflavin tetraacetate as photocatalyst under blue light irradiation of the reaction mixture. The corresponding carbonyl compounds were obtained in moderate to good yields.
开发了一种用于无溶剂光催化固体和液体底物转化的方法,使用了一种新型的棒磨装置。在这种设置中,薄液膜的形成对于有效的光催化转化至关重要,因为在异质系统中光的穿透深度较低。利用核黄素四醋酸酯作为光催化剂,在蓝光照射下,将若干苄基醇氧化为相应的醛化合物,产率在中等到良好之间。