The Decomposition of Arenediazonium Tetrafluoroborates with Halo- and Azidotrimethylsilanes in Nonaqueous Solvents

Article abstract of DOI:10.1246/bcsj.62.89

The reaction of arenediazonium tetrafluoroborates with chlorotrimethylsilane in a tetrahydrofuran/N,N-dimethylformamide (DMF) (5v/3v) solution afforded the protodediazotization products in high yields.The reactions of the diazonium salts with halotrimethylsilanes in DMF were found to give the corresponding haloarenes.Among the halodediazotization reactions, the iododediazotization with iodotrimethylsilane proceeded smoothly at room temperature to give the iodoarenes in excellent yields.In a similar manner, a variety of azidoarenes were obtained in cosistently high yields by the treatment of arenediazonium tetrafluoroborates with azidotrimethylsilane in a DMF solution.