New 3-acyl-1,3-diaryltriazenes have been prepared and their reactions with
amino compounds have been studied. Reactions proceed rapidly under mild con
ditions to give the corresponding N-acyl products: Reagents enable chemosel
ective acylation of aliphatic primary and secondary amines in the presence
of other acylable functional groups. (C) 2001 Elsevier Science Ltd. All rig
hts reserved.