Covalent organic frameworks as metal-free heterogeneous photocatalysts for organic transformations
作者:Yongfeng Zhi、Ziping Li、Xiao Feng、Hong Xia、Yumin Zhang、Zhan Shi、Ying Mu、Xiaoming Liu
DOI:10.1039/c7ta07691f
日期:——
Two-dimensional covalentorganic frameworks (2D-COFs) are excellent candidates for photocatalytic organictransformations due to their periodic columnar π-arrays and ordered nanochannels. Here, we present a novel 2D-COF that features permanent porosity with high surface area and large pore volume, and exhibits a high crystallinity and an excellent stability. Indeed, the new 2D-COF was found to be a
The exceptional performance of covalent organic frameworks (COFs) serving as metal-free photocatalysts has been demonstrated in numerous oxidation reactions. However, the intricate structure–activity relationship between the components, structures and reactivity of COFs remains poorly understood. This is due to their photocatalytic activity being influenced by various factors, including light absorption
Continuous Flow Organocatalytic C–H Functionalization and Cross-Dehydrogenative Coupling Reactions: Visible Light Organophotocatalysis for Multicomponent Reactions and C–C, C–P Bond Formations
作者:Magnus Rueping、Carlos Vila、Teerawut Bootwicha
DOI:10.1021/cs400350j
日期:2013.7.5
A continuous flow procedure for the efficient metal-free, visible light photoredox-catalyzed alpha-functionalization of tertiary amines has been developed. Rose Bengal has been identified as an effective organic photocatalyst for continuous flow C-C and C-P bond formations as well as multicomponent reactions.