New access to carbonyl ylides by the silicon-based 1,3-elimination and their [3 + 2] cycloadditions to activated alkenes and alkynes: One-step synthesis of dihydrofurans and tetrahydrofurans

Article abstract of DOI:10.1016/S0040-4039(00)73820-2

Simple aryl-substituted carbonyl ylides are generated by the silicon-based 1,3-elimination of chloromethyl trimethylsilyl(α-aryl)methyl ethers promoted by flouride ion under mild and neutral conditions which provide an one-step synthesis of dihydrofurans