Name: 2-Chloropyridine 1-oxide. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 2-Chloropyridine 1-oxide, is researched, Molecular C5H4ClNO, CAS is 2402-95-1, about Synthesis of 4-methoxy-9H-pyrido[2,3-b]indole. Author is Yu, Dechao; Wang, Dechuan; Lin, Guowu.
2-Chloropyridine underwent N-oxidation, nitration, and substitution of the resultant nitro compound with NaOMe to give 2-chloro-4-methoxypyridine N-oxide. This intermediate was reacted with 1-tosyl-1H-benzotriazole followed by intramol. cyclization to afford the title compd in overall yield of 35.0% under the optimum conditions..
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Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem