In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Preparation of 5-hydroxy-4,6-dimethyl-3-pyridinemethanol (4-deoxypyridoxine) by the use of hydrazine, published in 1961, which mentions a compound: 148-51-6, mainly applied to , Electric Literature of C8H12ClNO2.
2-Methyl-3-hydroxy-4-methoxymethyl-5-hydroxymethylpyridine-HCl (10 g.) and 50 ml. 95% N2H4 refluxed 18 hrs., most of the N2H4 removed in vacuo, and the residue extracted with 60 ml. refluxing MeOH yielded N2H4.HCl, m. 91-2°. The volume of the filtrate reduced to 20 ml., 15 ml. 11.2% MeOH-HCl added, the precipitate isolated, and 50 ml. Et2O added gave a further precipitate The total yield was 8.1 g. 2-methyl-3-hydroxy-4-methyl-5-hydroxymethylpyridine-HCl (I), m. 273° (decomposition). All conditions and isolation procedures were as above except that instead of the 4-Me ether, 5 g. pyridoxine-HCl and 25 ml. 95% N2H4 were used to give 98% I.
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Reference:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia