Studies on nitrogen-containing heterocyclic compounds. Novel synthesis of naphtho[1,2-b and 2,1-b][1,8]naphthyridines and oxidation reactions with peroxy acids

被引:7
|
作者
Takeuchi, I
Asai, K
Hamada, Y
Masuda, H
Suezawa, H
Hirota, M
Kurono, Y
Hatano, K
机构
[1] YOKOHAMA NATL UNIV,FAC ENGN,DEPT SYNTHET CHEM,HODOGAYA KU,YOKOHAMA,KANAGAWA 240,JAPAN
[2] NAGOYA CITY UNIV,FAC PHARMACEUT SCI,MIZUHO KU,NAGOYA,AICHI 467,JAPAN
关键词
D O I
10.3987/COM-96-7525
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A modified Friedlander condensation of 2-aminonicotinaldehyde with alpha- and beta-naphthols lead successfully to two new naphtho[1,2-b and 2,1-b][1,8]-naphthyridines in a single synthetic procedure. The oxidation of the naphthonaphthyridines with peroxy acids afforded novel products such as a seven-membered oxazepine moiety. Structures were characterized by standard spectroscopy. The crystal and molecular structures (3) and (4) were determined by X-ray analyses.
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页码:2139 / 2152
页数:14
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