ZHANG, YONGMING;LU, PING;QIAN, WEIXING, J. NANGZHOU UNIV. NATUR. SCI. ED., 1982, 9, N 4, 461-465
作者:ZHANG, YONGMING、LU, PING、QIAN, WEIXING
DOI:——
日期:——
Ni-Catalyzed Alkenylation of Triazolopyridines: Synthesis of 2,6-Disubstituted Pyridines
作者:Sheng Liu、James Sawicki、Tom G. Driver
DOI:10.1021/ol301606y
日期:2012.7.20
A synthetic strategy to access 2,6-disubstitutedpyridines from triazolopyridines through a regioselective nickel-catalyzed alkenylation reaction of the C7–H bond is described. The N2 fragment embedded in the resulting C–H functionalized triazolopyridine can be readily excised using acidic or oxidative conditions to unmask the pyridine.
作者:Krishna C. Agrawal、Barbara A. Booth、Suzanne M. DeNuzzo、Alan C. Sartorelli
DOI:10.1021/jm00232a008
日期:1976.10
synthesized which contain a tertiary N at the 4 position. These materials were obtained by reacting 4-nitro-2-picoline N-oxide, either directly or after conversion to the corresponding 4-chloro derivative, with a variety of secondary amines. Rearrangement of the 4-substituted 2-picoline N-oxides with Ac2O yielded respective methyl acetates, which upon acid hydrolysis, MnO2 oxidation, and reaction with