N-Methylimidazolium perchlorate as a new ionic liquid for the synthesis of bis(pyrazol-5-ol)s under solvent-free conditions  

作　　者：Nader Ghaffari Khaligh Sharifah Bee Abd Hamid Salam J.J.Titinchi 

机构地区：[1]Nanotechnology & Catalysis Research Centre, NANOCAT, University Malaya [2]Department of Chemistry, University of the Western Cape

出　　处：《Chinese Chemical Letters》2016年第1期104-108,共5页中国化学快报（英文版）

基　　金：the partial support from University Malaya to Project GC 001A-14-AET

摘　　要：N-Methylimidazolium perchlorate（[MIm]ClO_4） was synthesized and some of its physico-chemical properties, such as density, surface tension were investigated. A thermo gravimetric analysis（TGA） and solvent performance were also studied. The results show that this ionic liquid is an excellent catalyst for the synthesis of 4,4＇-（arylmethylene）bis（1H-pyrazol-5-ol） derivatives under solvent-free conditions.This method has the advantages of high yield, clean transformation, simple operation and short reaction time. The ionic liquid can be recycled without significant loss of activity.N-Methylimidazolium perchlorate（[MIm]ClO_4） was synthesized and some of its physico-chemical properties, such as density, surface tension were investigated. A thermo gravimetric analysis（TGA） and solvent performance were also studied. The results show that this ionic liquid is an excellent catalyst for the synthesis of 4,4＇-（arylmethylene）bis（1H-pyrazol-5-ol） derivatives under solvent-free conditions.This method has the advantages of high yield, clean transformation, simple operation and short reaction time. The ionic liquid can be recycled without significant loss of activity.

关 键 词：Ionic liquid N-Methylimidazolium perchlorate Bis（pyrazol-5-ol）s Recycle 

分 类 号：O645.1[理学—物理化学]