1.
Acta Crystallogr E Crystallogr Commun
; 71(Pt 11): 1278-82, 2015 Nov 01.
Article
in English
| MEDLINE
| ID: mdl-26594491
ABSTRACT
The title compound, C30H28O2, was obtained during recrystallization of (±)-1,2-diphenyl-1,2-propane-diol in 1-butanol, from an unexpected non-acid-catalyzed pinacol rearrangement followed by acetal formation of the newly formed aldehyde with the diol. The tri-substituted dioxolane ring has a twist conformation on the C-O bond opposite the methyl-substituted C atom. There is an intra-molecular C-Hâ¯π inter-action present involving one of the di-phenyl-ethyl rings and an H atom of the phenyl ring in position 4 of the dioxolane ring. In the crystal, mol-ecules are linked by weak C-Hâ¯O hydrogen bonds, forming chains along [001]. The chains are linked by a second C-Hâ¯π inter-action, forming sheets parallel to the bc plane.