Intramolecular Acylation of an α-Sulfonyl Anion Generated via Halogen-metal Exchange of an α-Halosulfone Bearing an Unsymmetrical Anhydride

Article abstract of DOI:10.1016/0040-4039(91)80011-T

α-Halosulfones are useful for the in situ preparation of α-sulfonyl anions in the presence of acylating agents bearing enolizable protons.Inter- and intramolecular acylations can be effected by halogen-metal exchange at low temperature.