“…Post-synthetic introduction of primary amine groups or the presence of unreacted amino or carbonyl groups in imine-linked COFs have been shown to result in functional properties that are otherwise difficult to attain in fully formed networks. 98–101 In this context, several synthetic strategies, including functional group interconversions, 102–105 transamination reactions, 106,107 and site-selective 108–112 and regioselective synthesis, 113 have been reported to introduce primary amine groups in 2D COFs.…”