1) 4-Nitropyridine N-oxide
4-硝基氮氧化吡啶
2) 3-Fluoro-4-nitrofluoroazote pyridine oxide
3-氟-4-硝基氮氧化吡啶
3) lead(Ⅱ) and copper(Ⅱ) salts of 4 hydroxy 3,5 dinitropyridine oxide
4-羟基-3,5-二硝基吡啶氮氧化物铅、铜盐
4) 4-nitropyridine N-oxide process
硝基氮氧化吡啶法
1.
The research progress of 4-aminopyridine synthesis was reviewed,with the emphasis on 4-nitropyridine N-oxide process.
评述了4-氨基吡啶的合成研究进展,重点介绍了硝基氮氧化吡啶法工艺。
5) 4-nitropyridine-1-oxide
4-硝基吡啶-1-氧化物
1.
To investigate the electrochemical synthesis mechanism of the 4-aminopyridine, the electrochemical behavior of 4-nitropyridine-1-oxide under the strong acid conditions was studied by cyclic voltammetry, controlled potential coulometry and some other methods.
4-氨基吡啶是一种重要的精细化工产品,为探讨其电化学合成过程的反应机理,采用循环伏安法、库仑电解等方法对强酸性条件下4-硝基吡啶-1-氧化物的电化学行为进行了研究。
6) 4-nitropyridine-N-oxide
4-硝基吡啶-N-氧化物
1.
For the passed decades, the synthesis of 4-aminopyridine has been performed by the preparation of pyridine-N-oxide from the oxidation of pyridine using H2O2 as oxidant in the presence of acetic acid, and then 4-nitropyridine-N-oxide using the concentrated sulfuric or nitric acid, followed by the reduction using iron powder in the solvent of acetic acid.
目前国际上常用的合成方法是在大量乙酸存在下用30%的H2O2氧化吡啶制备吡啶-N-氧化物,以硝硫混酸为硝化剂硝化得到4-硝基吡啶-N-氧化物,再以铁粉为还原剂在乙酸中还原得到4-氨基吡啶。
补充资料：4-硝基氮氧化吡啶
分子式：C5H4N2O3
分子量：140.0982
CAS号：1124-33-0
性质：黄色片状晶体
制备方法：暂无
用途：暂无
分子量：140.0982
CAS号：1124-33-0
性质：黄色片状晶体
制备方法：暂无
用途：暂无
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条