SYNTHESIS OF ACETYLENIC BETA-DIKETONES AND THEIR CONVERSION INTO 4H-PYRAN-4-ONES, PYRAZOLES, AND 1-HYDROXY-4-PYRIDONES

被引：42

作者：

ELKHOLY, IE

MAREI, MG

MISHRIKEY, MM

机构：

[1] Chemistry Department, Faculty of Science, Alexandria University, Alexandria

来源：

JOURNAL OF HETEROCYCLIC CHEMISTRY | 1979年 / 16卷 / 04期

关键词：

D O I：

10.1002/jhet.5570160425

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A simple method for the synthesis of acetylenic β‐diketones is described. They can be cyclized to the corresponding 4H‐pyran‐4‐ones with acids. Their reaction with hydrazine hydrate gave pyrazole derivatives isomeric with those obtained from 4H‐pyran‐4‐ones. With hydroxyl‐amine hydrochloride in ethanol, 1‐hydroxy‐4‐pyridones are formed. Copyright © 1979 Journal of Heterocyclic Chemistry

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页码：737 / 743

页数：7

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