Vinylic Organoboranes. 15. Mercuration of 2-Alkenyl-1,3,2-benzodioxaboroles and Boronic Acids. A Convenient Stereospecific Procedure for the Conversion of Alkynes into (E)-1-Halo-1-alkenes via Mercuric Salts

Article abstract of DOI:10.1021/jo00287a020

Vinylboranes derived from terminal and internal alkynes via hydroboration with 1,3,2-benzodioxaborole undergo an instantaneous reaction with mercuric acetate at 0 deg C to give the corresponding vinylmercuric acetates in exceptionally good yields.The reac