Ab. Charette et M. Grenon, Mild method for the synthesis of amidines by the electrophilic activation of amides, TETRAHEDR L, 41(11), 2000, pp. 1677-1680
The synthesis of amidines was achieved by the addition of amines to amides
that were previously activated with trifluoromethanesulfonic anhydride (tri
flic anhydride) and pyridine. Various disubstituted and trisubstituted amid
ines were prepared in yields up to 84%. (C) 2000 Elsevier Science Ltd. All
rights reserved.