Furopyridines. XXIV. Nitration, chlorination, acetoxylation and cyanation of 2, 3??dihydrofuro [2, 3??b]??,??[3, 2??b]??,??[2, 3??c]??and??[3, 2??c] pyridine N??Oxides

…, M Kurosaki, K Taniguchi, M Moriyama

文献索引：Shiotani, Shunsaku; Kurosaki, Masahide; Taniguchi, Katsunori; Moriyama, Miwa Journal of Heterocyclic Chemistry, 1997 , vol. 34, # 3 p. 941 - 952

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被引用次数: 3

摘要

Abstract Nitration of 2, 3-dihydrofuro [3, 2-b]-N-oxide 3b and-[2, 3-c] pyridine N-oxide 3c afforded the nitropyridine compounds 4b, 5b and 6 from 3b and 4c, 5c, 5′ c and 7 from 3c, while-[2, 3-b]-N-oxide 3a and-[3, 2-c] pyridine N-oxide 3d did not give the nitro compound. Chlorination of 3b and 3c with phosphorus oxychloride yielded mainly the chloropyridine derivatives 15b, 15′ b from 3b and 15c and 15′ c from 3c, whereas 3a and 3d gave ...