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
Radical couplings of epoxides and nitriles mediated by Cp2TiCl provide a diastereoselective route to the synthesis of beta-hydroxyketones. The conditions of this "aldol-like" reaction are mild enough to avoid the dehydration of the beta-hydroxyketone. The scope of the coupling reaction with functionalized and tetrasubstituted epoxides has been studied. The radical character of the coupling reactions is demonstrated.
Head-to-head polymers — XXXII: Toward head-to-head poly(α-methylstyrene): Synthesis of 2,3-dimethyl-2,3-diphenylbutanediol-1,4-ditosylate and 1,4-diphenyl-2,3-dimethylbutadiene-1,3