Crystal structure of 2α-(1,1-diphenylethyl)-4-methyl-4α,5α-diphenyl-1,3-dioxolane: the result of a non-acid pinacol rearrangement

Abstract

The title compound was produced unexpectedly from (±)-1,2-diphenyl-1,2-propane­diol by a sequential non-acid Pinacol rearrangement followed by acetal formation during recrystallization in 1-butanol. The tri-substituted dioxolane ring has a twist conformation and in the crystal, mol­ecules are linked by C—H⋯O hydrogen bonds, forming chains along [001].