Phase-transfer catalyzed alkylation and cycloalkylation of 3-substituted-1H-pyrazol-2-in-5-ones in the absence or presence of carbon disulphide

被引：15
|
作者：
Khalil, AK [1 ]
Hassan, MA [1 ]
Mohamed, MM [1 ]
El-Sayed, AM [1 ]
机构：
[1] Ain Shams Univ, Fac Sci, Dept Chem, Cairo, Egypt
来源：
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS | 2005年 / 180卷 / 02期
关键词：
3-substituted-1H-pyrazol-2-in-5-ones; alkylation; cycloalkylation; phase-transfer catalysis (PTC);
D O I：
10.1080/104265090517208
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
PTC-alkylation of 3-substituted-1H-pyrazol-2-in-5-ones by different organohalogen reagents at 25degreesC in the presence of tetrabutylammonium bromide as-catalyst was investigated either in the absence or presence of CS2. This work aims to study the comparative reactivity of N-versus O-versus C-alkylation and cycloalkylation.
引用
收藏
页码：479 / 496
页数：18
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