Phase-transfer catalyzed acylation of 5(3)-hydroxy-3(5)-substituted-1H-pyrazoles

被引：0

作者：

Khalil, Ali Kh ^{[1
]}

Hassan, Mohained A. ^{[1
]}

Mohamed, Mohamed M. ^{[1
]}

El-Sayed, Abeer M. ^{[1
]}

机构：

[1] Ain Shams Univ, Fac Sci, Dept Chem, Cairo, Egypt

来源：

INDIAN JOURNAL OF CHEMISTRY SECTION B-ORGANIC CHEMISTRY INCLUDING MEDICINAL CHEMISTRY | 2006年 / 45卷 / 11期

关键词：

phase-transfer catalysis (PTC); acylation; heterogenous reactions; 1H-pyrazoles; tetrabutylammonium bromide (TBAB); solid/liquid phases;

D O I：

暂无

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

PTC acylation of 5(3)-hydroxy-3(5)-substituted-1H-pyrazoles by different acyl halide reagents at 25 degrees C in the presence of tetrabutylammonium bromide as catalyst has been investigated. This work is aiming to study the comparison of N-versus O- and C-acylation of the starting materials.

引用

页码：2485 / 2490

页数：6

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