The reaction of arylhydrazines 1 with acetic anhydride in the presence of a catalytic amount of 4-(dimethylamino)pyridine leads to 1,1-diacetyl-2-arylhydrazines 4.
Egg,Hauzinger,Kraus,Spanyar
p. 1199 - 1203
(2007/10/02)
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