Abstract

The diazotization of a series of N-oxides of aminopyridines and aminoquinolines under the action of sodium nitrite in the presence of KI and p-TsOH in water at room temperature leads to the formation of the corresponding N-oxides of iodopyridines and iodoquinolines in high yields. The method has a general character and can be used for the preparation of 3-, 2-, and 4- N-oxides of iodopyridines.

The diazotization of a series of N-oxides of aminopyridines and aminoquinolines under the action of sodium nitrite in the presence of KI and p-TsOH in water at room temperature leads to the formation of the corresponding N-oxides of iodopyridines and iodoquinolines in high yields. The method has a general character and can be used for the preparation of 3-, 2-, and 4- N-oxides of iodopyridines.

中文翻译：

---

在水中对甲苯磺酸存在下，通过杂环氨基N-氧化物的重氮化-碘化反应，可以合成碘，吡啶和碘代喹啉的N-氧化物

摘要

在室温下水中，在KI和p -TsOH存在下，在亚硝酸钠的作用下，亚硝酸钠作用下，一系列氨基吡啶和氨基喹啉的N-氧化物重氮化导致碘代吡啶和碘喹啉的相应N-氧化物的高收率形成。 。该方法具有一般性，可用于制备碘吡啶的3-，2-和4- N-氧化物。

在室温下水中，在KI和p -TsOH存在下，在亚硝酸钠的作用下，亚硝酸钠作用下，一系列氨基吡啶和氨基喹啉的N-氧化物重氮化导致碘代吡啶和碘喹啉的相应N-氧化物的高收率形成。 。该方法具有一般性，可用于制备碘吡啶的3-，2-和4- N-氧化物。