IMPROVED HIGHLY EFFICIENT SYNTHESIS OF α,β-ACETYLENIC KETONES. NATURE OF THE INTERMEDIATE FROM THE REACTION OF LITHIUM ACETYLIDE WITH BORON TRIFLUORIDE ETHERATE

Article abstract of DOI:10.1016/S0040-4039(01)81192-8

A wide variety of α,β-acetylenic ketones were synthesized in very high yields via an exceptionally facile intermolecular reaction of lithium alkynyltrifluoroborates and carboxylic acid anhydrides.