[(1R,3S)-3-(1,3-Dithian-2-yl)-2,2-dimethyl­cyclo­prop­yl]diphenyl­methanol

In the title compound, C22H26OS2, prepared from (–)-1R-cis-caronaldehyde, the 1,3-dithiane ring adopts a chair conformation. An intra­molecular O—H⋯S hydrogen bond influences the mol­ecular conformation. In the crystal, weak inter­molecular C—H⋯S and C—H⋯O hydrogen bonds link the mol­ecules into chains propagating along [010]

Palladium- and base-free synthesis of conjugated ynones by cross-coupling reactions of alkynylboronates with acid chlorides mediated by CuCl

Alkynylboronates can be employed as a practical and versatile precursor for a variety of pi-conjugated organic compounds. In the presence of Cu(I) salt, cross-coupling reactions of acid chlorides with alkynylboronates giving rise to the corresponding conjugated ynones takes place readily in aprotic polar solvents such as DMI under neutral conditions