title: 2,4-Bis(4-chloro-benzo-yl)-1-(4-chloro-phen-yl)-3,5-di-2-thienylcyclo-hexa-nol methanol hemisolvate.
abstract: The title compound, C(34)H(25)Cl(3)O(3)S(2)·0.5CH(3)OH, was synthesized by the reaction of thio-phene-2-carbaldehyde with acetophenone and NaOH under solvent-free conditions, using tetra-butylammonium bromide as a phase-transfer catalyst. The central six-membered ring adopts a chair conformation with the bulky thio-phene, 4-chloro-phenyl and 4-chloro-benzoyl substituents in equatorial positions. The hydroxyl group is in an axial position and forms an intra-molecular O-H⋯O hydrogen bond to the carbonyl group of an adjacent 4-chloro-benzoyl substituent. The methanol solvent mol-ecules are disordered equally over two positions within one-dimensional channels, with site occupancy factors of 0.25.
authors.forename: Xiao-Fang
authors.initials: XF
authors.lastname: Wang
authors.forename: Xian-Qiang
authors.initials: XQ
authors.lastname: Huang