One-Pot synthesis of flavones catalyzed by an Au-mediated covalent organic framework

J Colloid Interface Sci. 2023 Jul 15:642:283-291. doi: 10.1016/j.jcis.2023.03.151. Epub 2023 Mar 29.

Abstract

Covalent organic frameworks (COFs) are excellent candidates for rationally designed metal-coordinated catalysts due to their porous structures and adjustable organic building blocks. In this work, a two-dimensional (2D) COF with novel fxt topology was synthesized. The newly devised COF had been fully characterized by a range of spectroscopic and microscopic techniques. The COF was further metallized by the gold species to form a heterogeneous catalyst that enabled the one-pot synthesis of flavone and its derivatives. The Au@COF catalyst showed high catalytic activity and good recyclability. This work demonstrates the great potential of metallized COFs with unique well-defined pores in organic catalysis.

Keywords: Au coordination; Covalent organic frameworks; Flavone; One-pot synthesis; Organic catalysis.