Journal
TETRAHEDRON LETTERS
Volume 42, Issue 19, Pages 3251-3254Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4039(01)00458-0
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Bromopyridine 4 was converted into aminopyridine 5 under Cu2O catalysis with an ethylene glycol solution of ammonia in excellent yield (90%). The amination reaction features low (0.5 mol%) catalyst loading, mild reaction temperature (80 degreesC) and low reaction pressure (50 psi). This protocol is further studied in the amination of a variety of aryl halides. (C) 2001 Elsevier Science Ltd. All tights reserved.
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