A THEORETICAL AND EXPERIMENTAL INVESTIGATION OF Z,E STEREOISOMERISM IN SOME SIMPLE LIGNIN p-QUINONE METHIDES

Article abstract of DOI:10.1016/0022-2860(90)85017-D

On the basis of 3-21G ab initio, AM1 semiempirical and molecular mechanics calculations, the structures of the E and Z stereoisomers of the simplest lignin model p-quinone methides, 2-methoxy-4-ethylidene-2,5-cyclohexadiene-1-one (1) and 2-methoxy-4-(2-pr