Greener and facile aqueous synthesis of pyrazoles using Amberlyst-70 as a recyclable catalyst

被引:24
作者
Chandak, Hemant S. [1 ]
Lad, Nitin P. [1 ]
Dange, Dipali S. [1 ]
机构
[1] GS Coll, Dept Chem, Khamgaon 444303, India
关键词
pyrazoles; Amberlyst-70; aqueous synthesis; green synthesis; heterogeneous catalysis; ION-EXCHANGE-RESINS; ROOM-TEMPERATURE SYNTHESIS; EFFICIENT SYNTHESIS; IMPROVED PROTOCOL; ACID; DIAZEPINES; CHEMISTRY; POTENT;
D O I
10.1080/17518253.2011.585352
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
An environmentally benign, room temperature aqueous synthesis of pyrazoles by the condensation of hydrazines/hydrazides with 1,3-diketones using Amberlyst-70 as a recyclable catalyst is described. The use of resinous, nontoxic, thermally stable and inexpensive Amberlyst-70 as a heterogeneous catalyst and simple reaction workup are the additional eco-friendly attributes of this synthetic protocol.
引用
收藏
页码:135 / 138
页数:4
相关论文
共 45 条
[1]   One-pot construction of pyrazoles and isoxazoles with palladium-catalyzed four-component coupling [J].
Ahmed, MSM ;
Kobayashi, K ;
Mori, A .
ORGANIC LETTERS, 2005, 7 (20) :4487-4489
[2]   Synthesis of 3,5-diphenyl-1H-pyrazoles [J].
Bhat, BA ;
Puri, SC ;
Qurishi, MA ;
Dhar, KL ;
Qazi, GN .
SYNTHETIC COMMUNICATIONS, 2005, 35 (08) :1135-1142
[3]   Regioselective synthesis of 1,3,5-substituted pyrazoles from acetylenic ketones and hydrazines [J].
Bishop, BC ;
Brands, KMJ ;
Gibb, AD ;
Kennedy, DJ .
SYNTHESIS-STUTTGART, 2004, (01) :43-52
[4]  
Boullet F.T., 1986, SYNTHESIS-STUTTGART, V5, P409
[5]   Efficient regiocontrolled synthesis and antimicrobial activity of pyrazoles [J].
Braibante, Mara E. F. ;
Braibante, Hugo T. S. ;
de Carvalho Tavares, Luciana ;
Rohte, Simone F. ;
Costa, Carla C. ;
Morel, Ademir F. ;
Stueker, Caroline Z. ;
Burrow, Robert A. .
SYNTHESIS-STUTTGART, 2007, (16) :2485-2490
[6]   CATIONIC ION-EXCHANGE RESINS AS CATALYST [J].
CHAKRABARTI, A ;
SHARMA, MM .
REACTIVE POLYMERS, 1993, 20 (1-2) :1-45
[7]   Recyclable Amberlyst-70 as a Catalyst for Biginelli Reaction: An Efficient One-Pot Green Protocol for the Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones [J].
Chandak, Hemant S. ;
Lad, Nitin P. ;
Upare, Pravin P. .
CATALYSIS LETTERS, 2009, 131 (3-4) :469-473
[8]   Room-Temperature Synthesis of Pyrazoles, Diazepines, β-Enaminones, and β-Enamino Esters Using Silica-Supported Sulfuric Acid as a Reusable Catalyst Under Solvent-Free Conditions [J].
Chen, Xiang ;
She, Jin ;
Shang, Zhi-Cai ;
Wu, Jun ;
Zhang, Peizhi .
SYNTHETIC COMMUNICATIONS, 2009, 39 (06) :947-957
[9]  
Clark J.H., 1994, CATALYSIS ORGANIC RE
[10]  
Clark J.H., 1995, CHEM WASTE MINIMIZAT, P86