A radical coupling reaction of diverse vinylsulfones and epoxides was mediated by Cp2TiCl (Cp = cyclopentadienyl) to provide a straightforward synthetic pathway to hydroxy sulfones. The reaction was successfully achieved by using either an excess or a catalytic amount of the TiIII reagent. The scope of the reaction was studied for several different functionalized and substituted epoxides and vinyl
The reductive radicalcyclization of β-, γ-, δ- and e-epoxynitriles has been achieved using titanocene chloride. The reaction was regioselective and afforded cyclic β-hydroxyketones in good yield. The catalytic version of this radicalcyclization is also reported.