Fig. 8: Dynamic acceptor exchange.
From: A robust and tunable halogen bond organocatalyzed 2-deoxyglycosylation involving quantum tunneling

a Addition of 20 mol% product at the onset retarded XB catalysis. b Comparison of 3al formation kinetics of standard vs conditions in a. c Acceptor exchange experiment to ascertain dynamic acceptor exchange. d Competition experiment with TBAI showed XB catalyst poisoning halted the dynamic acceptor exchange. e 1:1 adduct of catalyst A to 3al revealed a downfield 13C NMR shift.