专业从事离子液体的合成、应用及其相关技术的研究工作----Lanzhou Greenchem ILs/青岛奥立科

• Ionic liquid as a green catalytic reaction medium for esterifications
• 更新时间：2014-04-05；信息类型：SCI论文
• Esterifications of alcohols with carboxylic acids in the room temperature ionic liquid 1-butylpyridinium chloride–aluminium(III) chloride as green reaction medium in catalytic quantities have been investigated. Excellent conversion and selectivities were achieved, and the most of resultant esters could be easily recovered due to immiscibility with the ionic liquid.
• 链接地址：http://www.ionike.com/download/article/2014-04-05/13.html

• Catalytic Beckmann rearrangement of ketoximes in ionic liquids
• 更新时间：2014-04-05；信息类型：SCI论文
• Under mild conditions and without any additional organic solvents, Beckmann rearrangements of several ketoximes were performed in the catalytic media consisting of room temperature ionic liquid based on 1,3-dialkylimidazolium or alkylpyridinium salts and phosphorated compounds. Excellent conversion and selectivity was achieved for cyclohexanone oxime as the substrate, while Beckmann fragmentation of cyclopentanone oxime was observed.
• 链接地址：http://www.ionike.com/download/article/2014-04-05/12.html

• A novel ZrO2–SO4 2− supported palladium catalyst for syntheses of disubstituted ureas from amines by oxidative carbonylation
• 更新时间：2014-04-05；信息类型：SCI论文
• The syntheses of disubstituted ureas by carbonylation of a series of amines in the presence of a sulfate modified zirconia supported palladium catalyst was investigated at an initial total pressure of 4.0 MPa and 135°C. High conversions and yields were achieved for the synthesis of symmetric dialkylureas. This supported catalyst could also be easily separated and recovered after reaction.
• 链接地址：http://www.ionike.com/download/article/2014-04-05/11.html

• Cycloaddition of carbon dioxide to propylene oxide catalyzed by ionic liquids
• 更新时间：2014-04-05；信息类型：SCI论文
• In room temperature ionic liquids based on 1-n-butyl-3-methylimidazolium and n-butylpyridinium salts, cycloaddition of carbon dioxide to propylene oxide without any additional organic solvents has been investigated. It was found that 1-n-butyl-3-methylimidazolium tetraÑuoroborate was the most active catalyst with almost 100% selectivity, and a suitable CO oxide molar ratio was needed for high conversion. The ionic liquid used 2Èpropylene as catalyst for the reaction was recyclable.
• 链接地址：http://www.ionike.com/download/article/2014-04-05/10.html

• Alkylations of benzene in room temperature ionic liquids modified with HCl
• 更新时间：2014-04-05；信息类型：SCI论文
• Alkylations of benzene with dodecene and/or chloromethanes in the chloroaluminate room temperature ionic liquid modified with HCl as catalysts have been investigated. Different product distributions and enhanced activity, were respectively observed for these two alkylation reactions. This may be attributed to the superacidity of the ionic liquid induced by the presence of HCl.
• 链接地址：http://www.ionike.com/download/article/2014-04-05/8.html

• Ionic liquids catalyzed Biginelli reaction under solvent-free conditions
• 更新时间：2014-04-05；信息类型：SCI论文
• 3,4-Dihydropyrimidin-2(1H)-ones were synthesised in high yields by one-pot three-component Biginelli condensation in the presence of room temperature ionic liquids such as 1-n-butyl-3-methylimidazolium tetrafluoroborate (BMImBF4) or hexafluorophosphorate (BMImPF6) as catalysts under solvent-free and neutral conditions.
• 链接地址：http://www.ionike.com/download/article/2014-04-05/7.html

• A Novel PdCl2/ZrO2–SO2- 4 Catalyst for Synthesis of Carbamates by Oxidative Carbonylation of Amines
• 更新时间：2014-04-05；信息类型：SCI论文
• At 170 degreesC and ca. 4.0 MPa, oxidative carbonylation of aromatic amines to synthesize corresponding carbamates over a novel PdCl2/ZrO2-SO42- catalyst could proceed with high conversion and selectivity.
• 链接地址：http://www.ionike.com/download/article/2014-04-05/6.html

• First gold(I) complex-catalyzed oxidative carbonylation of amines for the syntheses of carbamates
• 更新时间：2014-04-05；信息类型：SCI论文
• At 200 degreesC and 5 MPa of initial total pressure, the oxidative carbonylation of amines for the synthesis of the corresponding carbamates by Au(i) complexes as catalysts was conducted with excellent conversion and selectivity.
• 链接地址：http://www.ionike.com/download/article/2014-04-05/4.html

• 兰州化物所在胺醇烷基化和纳米金催化剂可控制备方面取得进展
• 更新时间：2013-04-11；信息类型：中心动态
• 胺醇烷基化反应是N-烷基化胺清洁制备的主要方法之一。然而，对胺醇烷基化反应具有高活性、高选择性和优良普适性的催化剂体系还主要集中于贵金属均相催化剂，对胺醇烷基化具有优良性能和普适性的非贵金属多相催化剂体系还报道较少。
• 链接地址：http://www.ionike.com/news/2014-04-22/59.html

• “合成环己氨基甲酸酯的方法”获国家发明专利授权
• 更新时间：2013-03-25；信息类型：中心动态
• 中国科学院兰州化学物理研究所绿色化学研发中心发展出合成环己氨基甲酸酯新方法，研究人员使用担载型金属氧化物固体催化剂，催化碳酸二烷基酯和N,N’-二环己基脲得到产物，催化剂的活性组分为过渡金属氧化物，催化剂的载体选自二氧化硅、氧化铝、活性碳、二氧化锆。
• 链接地址：http://www.ionike.com/news/2014-04-22/58.html