[EN] TRIAMINOCYCLOPROPENIUM SALTS<br/>[FR] SELS DE TRIAMINOCYCLOPROPÉNIUM
申请人:CURNOW OWEN JOHN
公开号:WO2012169909A1
公开(公告)日:2012-12-13
Disclosed are salts comprising triaminocyclopropenium cations and various anions, and ionic liquids comprising the salts. Also disclosed are intermediates and methods of preparing the salts. The ionic liquids are useful as, for example, solvents and electrolytes, and for gas storage.
Superparamagnetic Fe(OH)<sub>3</sub>@Fe<sub>3</sub>O<sub>4</sub> Nanoparticles: An Efficient and Recoverable Catalyst for Tandem Oxidative Amidation of Alcohols with Amine Hydrochloride Salts
nanoparticles were successfully prepared and characterized. This magnetic nanocomposite was employed as an efficient, reusable, and environmentally benign heterogeneous catalyst for the direct amidation of alcohols with aminehydrochloridesalts. Several derivatives of primary, secondary and tertiary amides were synthesized in moderate to good yields in the presence of this catalytic system. The catalyst was
磁性Fe(OH)3 @Fe 3 O 4纳米粒子的制备和表征成功。该磁性纳米复合材料用作将醇与胺盐酸盐直接酰胺化的有效,可重复使用且对环境无害的多相催化剂。在该催化体系的存在下,以中等至良好的产率合成了伯,仲和叔酰胺的几种衍生物。该催化剂已成功回收利用,最多可重复使用六次,而不会显着降低其催化活性。
Oxidative amidation by Cu(<scp>ii</scp>)–guanidine acetic acid immobilized on magnetized sawdust with eggshell as a natural base
Copper(II)–guanidine acetic acidcomplex was immobilized on the surface of magnetized raw waste sawdust (SD) as an abundant natural biopolymer and employed as an efficient and recoverable catalyst in oxidative amidation reaction, while waste eggshell (ES) powder was used as a low-cost solid base. The magnetic raw catalyst was fully characterized using FTIR, XRD, SEM, EDX, TGA, and VSM. A variety of
A solid-Supported phosphine-Free ruthenium alkylidene for olefin metathesis in methanol and water
作者:Stephen J Connon、Siegfried Blechert
DOI:10.1016/s0960-894x(02)00260-3
日期:2002.7
The synthesis and olefin metathesis activity in proticsolvents of 7, a phosphine-free rutheniumalkylidene bound to a hydrophilic solid support are reported. This heterogeneous catalyst promotes relatively efficient ring closing- and cross-metathesis reactions in both methanol and water. The potential utility of homogeneous catalyst 2 for olefin metathesis in methanol is also demonstrated.
Magnetite nanoparticles coated with mesoporous silica, Fe3O4@SiO2, were prepared. Surface functionalization of this core–shell nanocomposite with (3-aminopropyl)trimethoxysilane (APTMS) followed by its reaction with Cu(OAc)2 was used to develop a new heterogeneous copper complex (Fe3O4@SiO2–APTMS–Cu). The structure and composition of the synthesized nanocatalyst were characterized by FTIR, SEM, VSM
制备了包覆有介孔二氧化硅Fe 3 O 4 @SiO 2的磁铁矿纳米颗粒。用(3-氨基丙基)三甲氧基硅烷(APTMS)对该核-壳纳米复合材料进行表面功能化,然后使其与Cu(OAc)2反应,用于开发新的异质铜络合物(Fe 3 O 4 @SiO 2–APTMS–Cu)。通过FTIR,SEM,VSM,TEM,XRD和ICP分析对合成的纳米催化剂的结构和组成进行了表征。在甲基芳烃与胺盐酸盐的氧化酰胺化反应中探讨了合成催化剂的催化活性。通过这种方法制备了各种伯,仲和叔酰胺。该催化剂的磁性使分离容易,并具有显着的催化剂可回收性。该催化剂可重复使用6次而其催化活性没有明显降低。