... Select a Journal or Book ... 2,3-Dibenzyloxybenzaldehyde was prepared by benzylation of 2,3-dihydroxybenzaldehyde, using the method of Comber et al ... R f (15% EtOAc/petroleum ether) 0.23; IR (liquid film) 3406, 1594 cm - 1 ; δ H (300 MHz, CDCl 3 ) 6.75 (3H, s, ArH), 4.7 (2H ...