e.g. Filippa Pettersson or Cancer Res. 75(6) , 1102-12, (2015) or 10.1002/anie.201600521
Synthesis and nucleophilic substitution of allenyl (m-nitrophenyl) iodanes as a new propynyl cation-equivalent species: synthesis of propynyl ethers, esters, and …
Treatment of diacetoxy (m-nitrophenyl) iodane with propynylsilanes in the presence of BF3· Et2O gives allenyl (m-nitrophenyl) iodanes, which act as propynyl cation-equivalent species and undergo regioselective nucleophilic substitution with alcohols, carboxylic acids and nitriles to give propynyl ethers, esters and amides.