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- A novel reaction in ionic liquids: selective cyclization of 1-dodecene to cyclododecane under moderate pressure
- 更新时间:2014-04-05;信息类型:SCI论文
- A novel reaction of cyclization of 1-dodecene to cyclododecane with high selectivity, especially under moderate pressure, is found in ethanol buffered chloroaluminate ionic liquids with easy separation of product duo to the immiscibility with ionic liquids.
- 链接地址:http://www.ionike.com/download/article/2014-04-05/24.html
- Highly efficient ionic liquid-mediated palladium complex catalyst system for the oxidative carbonylation of amines
- 更新时间:2014-04-05;信息类型:SCI论文
- A highly efficient catalyst system, palladium complex–ionic liquid, was developed for the carbonylation of amines to give carbamate or urea. The desired products could be precipitated by adding water into the resulting mixture and the catalyst system could be reused with slight loss of catalytic activity.
- 链接地址:http://www.ionike.com/download/article/2014-04-05/23.html
- SO3H-functionalized ionic liquid as efficient, green and reusable acidic catalyst system for oligomerization of olefins
- 更新时间:2014-04-05;信息类型:SCI论文
- SO3H-functionalized ionic liquids have been employed as an alternative reaction medium to conventional acid catalysts for oligomerization of various olefins, to produce branched olefin derivatives in high conversions and excellent selectivity. The ionic liquid plays a dual role as both catalyst and solvent, providing an efficient and reusable acidic catalyst system for the oligomerization of olefins.
- 链接地址:http://www.ionike.com/download/article/2014-04-05/22.html
- Highly selective and green aqueous–ionic liquid biphasic hydroxylation of benzene to phenol with hydrogen peroxide
- 更新时间:2014-04-05;信息类型:SCI论文
- With equal molar ratio of benzene and hydrogen peroxide and without any additional volatile organic solvent, a green aqueous–ionic liquid biphasic hydroxylation of benzene to phenol with hydrogen peroxide as oxidant and metal dodecanesulfonate salts such as ferric tri(dodecanesulfonate) as catalyst was conducted with excellent selectivity and enhanced conversion.
- 链接地址:http://www.ionike.com/download/article/2014-04-05/21.html
- The first non-acid catalytic synthesis of tert-butyl ether from tert-butyl alcohol using ionic liquid as dehydrator
- 更新时间:2014-04-05;信息类型:SCI论文
- Methyl tert-butyl ether (MTBE), ethyl tert-butyl ether (ETBE), and isopropyl tert-butyl ether (IPTBE) have been synthesized for the first time over a non-acid ionic liquid as catalyst and dehydrator with high conversion ( > 90%) and selectivity ( > 90%) under mild conditions.
- 链接地址:http://www.ionike.com/download/article/2014-04-05/20.html
- Alternatives to Phosgene and Carbon Monoxide: Synthesis of Symmetric Urea Derivatives with Carbon Dioxide in Ionic Liquids
- 更新时间:2014-04-05;信息类型:SCI论文
- Feng Shi, Youquan Deng,* Tianlong SiMa, Jiajian Peng, Yanlong Gu, and Botao Qiao. Angew. Chem. Int. Ed. 2003, 42, 3257–3260.
- 链接地址:http://www.ionike.com/download/article/2014-04-05/18.html
- Polymer-Immobilized Gold Catalysts for the Efficient and Clean Syntheses of Carbamates and Symmetric Ureas by Oxidative Carbonylation of Aniline and Its Derivatives
- 更新时间:2014-04-05;信息类型:SCI论文
- A series of highly efficient polymer-immobilized gold catalysts were prepared for the oxidative carbonylation of aniline and its derivatives to obtain carbamates and symmetric ureas in a clean, simple, solvent-free, and obtainable product-ready way.TEM showed that the average gold particle size of fresh catalyst was less than 10 nm.
- 链接地址:http://www.ionike.com/download/article/2014-04-05/17.html
- The syntheses of carbamates from reactions of primary and secondary aliphatic amines with dimethyl carbonate in ionic liquids
- 更新时间:2014-04-05;信息类型:SCI论文
- At 170°C and using ionic liquids as solvent and catalyst, primary and secondary aliphatic amines could react with dimethyl carbonate to give alkyl carbamates with good yield. Due to its insolubility, the desired carbamate solid could be recovered by simple filtration from the two-layer mixture of dimethyl carbonate and ionic liquid after reaction and the formation of N-methylated and deammoniated products were restrained.
- 链接地址:http://www.ionike.com/download/article/2014-04-05/16.html
- Hydroesterification of tert-butyl alcohol in room temperature ionic liquids
- 更新时间:2014-04-05;信息类型:SCI论文
- Hydroesterification of tert-butyl alcohol with ethanol catalyzed by transition metal triphenylphosphine complexes in the presence of p-toluenesulfonic acid was investigated using room temperature ionic liquids as the reaction medium at 373–413 K and 3–6 MPa of CO. In comparison with the organic solvents as reaction medium, higher conversion was achieved and ethyl tert-valerate could be directly formed in the ionic liquid medium. The products could be separated from the ionic liquids easily due to their immiscibility in this medium.
- 链接地址:http://www.ionike.com/download/article/2014-04-05/15.html
- Electrochemical activation of carbon dioxide in ionic liquid: synthesis of cyclic carbonates at mild reaction conditions
- 更新时间:2014-04-05;信息类型:SCI论文
- Electrocatalytic cycloaddition of carbon dioxide to epoxides in room temperature ionic liquids as reaction media without any additional supporting electrolyte and catalyst could be conducted with high to excellent performances under mild conditions.
- 链接地址:http://www.ionike.com/download/article/2014-04-05/14.html