Wang, Tengfei; Zheng, Danning; Zhang, Jingshun; Fan, Baowan; Ma, Yuan; Ren, Tiegang; Wang, Li; Zhang, Jinglai published an article on February 5 ,2018. The article was titled 《Protic Pyrazolium Ionic Liquids: An Efficient Catalyst for Conversion of CO2 in the Absence of Metal and Solvent》, and you may find the article in ACS Sustainable Chemistry & Engineering.Safety of 1-Butyl-1H-pyrazole The information in the text is summarized as follows:
A series of novel protic pyrazolium ionic liquids are firstly synthesized and utilized as catalysts for cycloaddition of carbon dioxide and epoxides to form cyclic carbonates under metal- and solvent-free conditions. The new developed protic pyrazolium ionic liquids present excellent catalytic activity towards the fixation of carbon dioxide. More importantly, they would be prepared by a facile two-step reaction from cheap raw starting materials with a total yield more than 90%. The influence of catalyst dosage, reaction temperature, carbon dioxide pressure, and reaction time on the synthesis of cyclic carbonates is studied to identify the optimal reaction conditions. Under the optimum condition, the catalyst suitability is studied. Addnl., the possible reaction mechanism is studied by the Double-IL model to elucidate the synergistic effects of electrostatic and weak interaction in catalytic process. The experimental process involved the reaction of 1-Butyl-1H-pyrazole(cas: 52096-24-9Safety of 1-Butyl-1H-pyrazole)
1-Butyl-1H-pyrazole(cas: 52096-24-9) belongs to pyrazoles. Pyrazoles and their related multiring analogs are common elements of a wide variety of bioactive compounds. These ring structures are rare in nature. A consequence of this is that they have previously been thought to be poor moieties to include in potential new drugs. Safety of 1-Butyl-1H-pyrazole
Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics