Organocatalytic synthesis of polysubstituted tetrahydrofurans from alkenes

A novel, organocatalytic and environmentally friendly protocol for the synthesis of polysubstituted tetrahydrofurans from trivial starting materials has been described. By employing 2,2,2-trifluoroacetophenone-mediated oxidation, which utilizes H2O2 as a green oxidant, we introduce a sustainable procedure that embraces the principles of green chemistry for the production of substituted tetrahydrofurans in high to excellent yields and tolerates a wide range of substitution patterns.