Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 72, Issue 12, Pages 4554-4557Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jo070189y
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Pyridine N-oxides were converted to 2-aminopyridines in a one-pot fashion using Ts2O-t-BuNH2 followed by in situ deprotection with TFA. The amination proceeded in high yields, excellent 2-/4-selectivity, and with good functional group compatibility. 2-Amino (iso)quinolines were also obtained in the same manner. Combined with the simple oxidation of pyridines to pyridine N-oxides, this method provides a general and efficient way for amination of 2-unsubstituted pyridines.
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