Propyloxy-substituted piperidine in solution adopts a conformation in which its alkoxy group is equatorially positioned. Surprisingly, two conformers of it that do not interconvert in the NMR time ...

Reaction of resorcinol and 1,4-butanedial [(CH2)2(CHO)2] in the presence of concentrated HCl in ethanol at 80 °C for 48 h afforded a soluble polymer (CRA−polymer) in quantitative yield under ...