Cyclization of α,ω Aliphatic Diamines and Conversion of Primary Amines to Symmetrical Tertiary Amines by a Homogeneous Ruthenium Catalyst

Article abstract of DOI:10.1021/jo00321a056

α,ω Aliphatic diamines were cyclized to heterocyclic amines by being heated at 180 deg C for 5 h with RuCl2(Ph3P)3 in diphenyl ether.Primary amines having an α-hydrogen atom are converted to symmetrical tertiary amines by being heated at 185 or 235 deg C for 8 h with RuCl3*3H2O and Ph3P in THF solution.