355688-Hexamethyl-5678-tetra­hydro-2-naphthoic acid (AHTN–COOH)

摘要

The title compound, C17H24O2, is the product of a haloform reaction of 6-acetyl-1,1,2,4,4,7-hexa­methyl­tetra­line (AHTN). The compound is a racemic mixture with a disorder in its aliphatic ring [occupany ratio 0.683 (4):0.317 (4)] due to two possible half-chair forms. The carb­oxy­lic acid unit is slightly twisted out of coplanarity with the aromatic system [dihedral angle = 29.26 (6)°]. In the crystal, pairs of short classical inter­molecular O—H⋯O hydrogen bonds link pairs of mol­ecules around a center of symmetry.