摘要:
                                Dimercaptans and diamines react with 3-bromo-N-tritylpropanamine to give the corresponding N,N'-ditrityldithia and N,N'-ditritylpolyaza compounds in yields of 50-80%.  The trityl protecting groups are readily removed in acid.  These reactions make possible the synthesis of a number of new alpha-omega-diamino compounds needed for the synthesis of new dithiadiaza, di- and polyaza macrocyclic ligands.