One-pot synthesis of 1,2,4-oxadiazoles from carboxylic acids using 4-(dimethylamino)pyridinium acetate as efficient, regenerable, and green catalyst with ionic liquid character
A recyclable bifunctional acid–base organocatalyst with ionicliquid character has been prepared and its catalytic activity for the preparation of oxadiazoles has been investigated.
Highly Efficient One-Pot Preparation of 1,2,4-Oxadiazoles in the Presence of Diazabicycloundecene
作者:Kirill Lukin、Vimal Kishore
DOI:10.1002/jhet.1689
日期:2014.1
New highlyefficient method for the cyclization of acylamidoximes in the presence of diazabicycloundecene was developed and incorporated into a general and practical one‐pot synthesis of 1,2,4‐oxadiazoles (11 examples, 85–97% yields).