Aminoacetals, easily prepared by condensation of aromatic aldehydes, secondary amines and alcohols, are reductively coupled by using low valent titanium iodide species to afford the corresponding coupling products, vicinal tertiary diamines, in good to high yields under mild reaction conditions.
氨基
缩醛很容易通过芳香醛、仲胺和醇的缩合制备,通过使用低价
碘化
钛物种还原偶联,在温和的反应条件下以良好到高产率得到相应的偶联产物,即邻位叔二胺。