(1S*,2R*,2′R*)-2-Phenyl-1-phenylthio-1-(tetrahydropyran-2-ylthio)propan-2-ol at 193 K

Abstract

2-Phenyl-1-phenyl­thio-1-(tetra­hydro­pyran-2-yl­thio)­propan-2-ol, C20H24O2S2, was synthesized as a mixture of four di­as­tereoisomers. An isomer which crystallizes in the centrosymmetric monoclinic space group P21/c with the relative configuration (1S*,2R*,2′R*) is presented. Intermolecular hydrogen bonds between the hydroxyl group and the O atom of the tetra­hydro­pyran ring of a neighbouring mol­ecule [O⋯O 2.751 (2) A] form zigzag chains in the c-axis direction. The tetra­hydro­pyran ring has a chair conformation with an axial S-side chain.