Constrution of Quinazoline‐Linked Covalent Organic Frameworks via a Multicomponent Reaction for Photocatalysis

Abstract Quinazoline (Qz)‐linked covalent organic frameworks (COFs) have been constructed via a three‐component reaction of ortho‐acylanilines, benzaldehydes and NH 4 OAc. The structure of Qz‐COFs has been confirmed by solid‐state nuclear magnetic resonance spectroscopy, Fourier transform infrared and powder X‐ray diffraction patterns. The Qz‐COFs possess high chemical stability, showing good endurance to strong acid, strong base, oxidant, reductant and other conditions. Particularly, Qz‐COF‐3 can catalyze the aerobic photooxidation of toluene and other compounds containing C( sp 3 )−H bonds.