366491-15-8Relevant articles and documents
Direct Synthesis of Dimethyl Carbonate from Carbon Dioxide and Methanol at Room Temperature Using Imidazolium Hydrogen Carbonate Ionic Liquid as a Recyclable Catalyst and Dehydrant
Zhao, Tianxiang,Hu, Xingbang,Wu, Dongsheng,Li, Rui,Yang, Guoqiang,Wu, Youting
, p. 2046 - 2052 (2017)
The direct synthesis of dimethyl carbonate (DMC) from CO2 and CH3OH was achieved at room temperature with 74 % CH3OH conversion in the presence of an imidazolium hydrogen carbonate ionic liquid ([CnCmIm][HCO3]). Experimental and theoretical results reveal that [CnCmIm][HCO3] can transform quickly into a CO2 adduct, which serves as an effective catalyst and dehydrant. Its dehydration ability is reversible. The energy barrier of the rate-determining step for the DMC synthesis is only 21.7 kcal mol?1. The ionic liquid can be reused easily without a significant loss of its catalytic and dehydrating ability.
Preparation method of antibacterial veterinary medicine quinocetone
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Paragraph 0012, (2017/08/29)
The invention provides a preparation method of quinocetone which is a national first class new veterinary medicine initiated internationally and has antibacterial, diarrhea-stopping and growth-promoting effects. The preparation method comprises the following steps: adding alkaline ionic liquid into a reactor, adding benzofurazan and benzylidene acetylacetone, stirring, conducting reaction at room temperature, and performing aftertreatment on the reaction liquid after the reaction to obtain the quinocetone. The method is short in process step, mild in reaction condition, short in reaction time, high in efficiency, high in product yield and high in product purity; meanwhile, the alkaline ionic liquid provided by the invention is in a liquid state at room temperature, has high dissolubility on the raw materials and can serve as a catalyst and a reaction solvent of a reaction system, so that environmental pollution caused by an organic solvent is avoided and large-scale production is facilitated.
BMIm HCO3: an ionic liquid with carboxylating properties. Synthesis of carbamate esters from amines
Di Nicola,Arcadi,Rossi
supporting information, p. 9895 - 9898 (2016/12/07)
1-Butyl-3-methylimidazolium hydrogen carbonate (BMIm HCO3) was used as an ionic liquid with carboxylating properties able to convert, in the presence of an alkyl halide, amines into the corresponding carbamate esters. Moderate to good yields of