申请人:NISSAN CHEMICAL INDUSTRIES, LTD.
公开号:US20150266887A1
公开(公告)日:2015-09-24
The problem of the present invention is to provide a production method for safely synthesizing a nitrogen-containing heterocyclic N-oxide compound in high yield. Another problem of the present invention is to provide a novel N-oxide compound. There is provided a method for producing a nitrogen-containing heterocyclic N-oxide compound of Formula (2), such as 2,2,7,9-tetramethyl-2H-pyrano[2,3-g]quinoline N-oxide, by oxidizing a nitrogen-containing heterocyclic compound of Formula (1), such as 2,2,7,9-tetramethyl-2H-pyrano[2,3-g]quinoline with a persulfate.
本发明的问题是提供一种安全合成含氮杂环N-氧化物化合物高产的生产方法。本发明的另一个问题是提供一种新的N-氧化物化合物。通过使用过硫酸盐氧化式(1)中的含氮杂环化合物,例如2,2,7,9-四甲基-2H-吡喃[2,3-g]喹啉,可以制备式(2)中的含氮杂环N-氧化物化合物,例如2,2,7,9-四甲基-2H-吡喃[2,3-g]喹啉N-氧化物,从而提供了一种制备含氮杂环N-氧化物化合物的方法。