Interaction, bond formation or reaction between a dimethylamino group and an adjacent alkene or aldehyde group in aromatic systems controlled by remote molecular constraints

Abstract

Control of the spacing between a dimethylamino group and a polarised alkene by remote constraints determines if the groups make a n–π* interaction, form a Me₂N–C bond or a (MeN)CH₂–C bond initiated by the tertiary amino effect.