Methyl-and Phenyl-Substituted Salicylideneanilines

The angles between the phenol and anil ring systems attached to the imine functions of 2-hydroxyacetophenone anil [IUPAC name: 2-(1-phenyliminoethyl)phenol; C₁₄H₁₃NO] and 2-hydroxybenzophenone anil {IUPAC name: 2-[phenyl(phenylimino)methyl]phenol; C₁₉H₁₅NO} are 101.6 (1) and 103.2 (1)°, respectively. These are larger than in the corresponding salicylideneanilines derived from aldehydes because of steric repulsions arising from the substitution of H by Me or Ph. Bond lengths and angles are, however, broadly similar in the aldehyde- and ketone-derived systems.

-1