Synthetic methods and reactions; 87. Deoxygenation of pyridine N-oxides with trimethyl(ethyl)amine-sulfur dioxide complexes was written by Olah, George A.;Arvanaghi, Massoud;Vankar, Yashwant D.. And the article was included in Synthesis in 1980.Product Details of 24103-75-1 This article mentions the following:
Pyridine N-oxides I (R = H, Me; R1 = H, 3-Me, 4-Me, 6-Me, 5-Et, 4-MeO, 3-Cl,) were deoxygenated by R23N.SO2 (R2 = Me, Et) to give the corresponding pyridines in 60-81% yield. I (R1 = 4-NO2) underwent little reaction. In the experiment, the researchers used many compounds, for example, 4-Methoxy-2-methylpyridine (cas: 24103-75-1Product Details of 24103-75-1).
4-Methoxy-2-methylpyridine (cas: 24103-75-1) belongs to pyridine derivatives. Pyridine’s the lone pair does not contribute to the aromatic system but importantly influences the chemical properties of pyridine, as it easily supports bond formation via an electrophilic attack. Many analogues of pyridine are known where N is replaced by other heteroatoms . Substitution of one C–H in pyridine with a second N gives rise to the diazine heterocycles (C4H4N2), with the names pyridazine, pyrimidine, and pyrazine.Product Details of 24103-75-1