Ogata, Masaru published the artcilePyridazines. II. 4-Methylpyridazine N-oxides, Recommanded Product: (6-Methoxypyridazin-3-yl)methanol, the publication is Chem. Pharm. Bull. (Tokyo) (1963), 35-9, database is CAplus.
4-Methylpyridazine as above gave 4-methylpyridazine 1-oxide (XVI), m. 83-4°, λ (EtOH) 266, 314 mμ (log ε 4.05, 3.61) and 2-oxide (XVII), b4 135° (no m.p. given), λ (EtOH) 265, 305 mμ (log ε 4.01, 3.52). 6-Chloro-4methyl-3(2H)-pyridazinone (2 g.), 50 cc. MeOH, 5 cc. 28% NH4OH, 0.5 g. 10% Pd-C and H gave 1.2 g. 4-methyl-3(2H)pyridazinone (XVIII), m. 165-6° (EtOAc); similarly, 4 g. 6-chloro-5-methyl-3(2H)-pyridazinone gave 2.95 g. 5-methyl-3(2H)-pyridazinone (XIX), m. 160-1°. XVIII and POCl3 as above gave 3-chloro-4-methylpyridazine (XX), m. 46-7° and XIX gave 6-chloro-4-methylpyridazine (XXI), m. 33°; XX and XXI with BzO2H in CHCl3 at room temperature gave the corresponding 1-oxides, m. 148-9° (XXII) and 127-8° (XXIII), resp. XXII (250 mg.), 10 cc. MeOH, 1 cc. MeOH-NH3, 0.1 g. 10% Pd-C and H gave XVI; XXIII similarly gave XVII. The following were prepared by procedures described in the first part: 4-methyl-5-nitropyridazine 2-oxide, m. 144-5°; 4-methyl-5-aminopyridazine, m. 137-8°; 3-amino-5-methylpyridazine, m. 183-4°; and 4-amino-4-methylpyridazine, m. 200° (decomposition).
Chem. Pharm. Bull. (Tokyo) published new progress about 89532-79-6. 89532-79-6 belongs to pyridazine, auxiliary class Pyridazine,Alcohol,Ether, name is (6-Methoxypyridazin-3-yl)methanol, and the molecular formula is C6H8N2O2, Recommanded Product: (6-Methoxypyridazin-3-yl)methanol.
Referemce:
https://en.wikipedia.org/wiki/Pyridazine,
Pyridazine | C4H4N2 – PubChem