Starch-Sulfuric Acid (SSA) as Catalyst for a One-Pot Synthesis of 1,5-Diaryl-1H-pyrazoles

被引：7
|
作者：
Hatamjafari, Farhad [1 ]
机构：
[1] Islamic Azad Univ, Dept Chem, Fac Sci, Tonekabon Branch, Tonekabon, Iran
来源：
HELVETICA CHIMICA ACTA | 2013年 / 96卷 / 08期
关键词：
BaylisHillman condensation; 1H-Pyrazoles; 1; 5-diaryl-; Starchsulfuric acid (SSA); Regioselective reactions; REGIOSELECTIVE SYNTHESIS; CELLULOSE;
D O I：
10.1002/hlca.201200621
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Protocols with starchsulfuric acid (SSA) as reusable catalyst for the synthesis of aryl-1H-pyrazoles are described. SSA acted as an efficient and environmentally friendly catalyst for the regioselective condensation of BaylisHillman adducts 1 with phenylhydrazine hydrochloride leading to the new 1,5-diaryl-1H-pyrazole 2a-2e in excellent yields (Scheme and Table1).
引用
收藏
页码：1560 / 1563
页数：4
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