A New and Facile Synthesis of Ketene Imines and Their 2-Iminoazetidine Dimer from Nitriles via Their Nitrilium Salts

Article abstract of DOI:10.1021/jo00236a005

A new one-pot synthesis of N-tert-butylketene imines 3 was accomplished on the basis of the reaction of N-tert-butylacetonitrilium tetrachloroferrate 2 with an organic base such as triethylamine or N-trisubstituted amidine 4.The α-hydrogen in 2 is particu