nitrile-functionalized ionicliquid, viz. [C3CNpy][Tf2N]. Advantages over previously reported methods include: (1) use of a cheap catalyst source, PdCl2, (2) ability to handle the catalyst in air, (3) reduced reaction times, (4) elimination of phase-transfer catalysts due to the high solubility of the inorganic base in the ionicliquid, and (5) facile recycling of the ionic liquid-palladium catalyst
An ionic solid catalyst by pairing Keggin polyoxometalate-anions with PdII-coordinated nitrile-tethered ionic liquid cations was synthesized, characterized, and tested for aerobic oxidation of benzene to biphenyl. A unique heterogeneous intramolecular electron transfer mechanism is proposed to understand its high activity.
[EN] SYSTEM PROVIDING CONTROLLED DELIVERY OF GASEOUS 11CO FOR CARBONYLATION REACTIONS IN THE PREPARATION OF RADIOPHARMACEUTICALS FOR PET IMAGING<br/>[FR] SYSTÈME D'ALIMENTATION CONTRÔLÉE EN 11CO GAZEUX POUR RÉACTIONS DE CARBONYLATION DANS LA PRÉPARATION DE PRODUITS RADIOPHARMACEUTIQUES POUR IMAGERIE TEP
申请人:UNIV AARHUS
公开号:WO2013041106A1
公开(公告)日:2013-03-28
A carbonylation system comprising an enclosure sealed from the surrounding atmosphere. The enclosure comprises at least one solid support arranged for 11CO being sorped thereto, and at least one carbon monoxide consuming chamber comprising carbonylation reagents. The at least one carbon monoxide consuming chamber is arranged for performing carbonylation reactions in a gas-diffusion process between 11CO from the solid support and said carbonylation reagents to form a reaction product.
only 0.2 wt %. The used halide anion from the synthesis route was the major anion impurity, yet with chloride also bromide and fluoride (potentially from hydrolysis of [BF4]–) were often detected. When iodide was used, at least chloride but sometimes also bromide and fluoride was present. However, even if the IL-anion content is above 99 wt %, it does not necessarily indicate an ionic liquid devoid of
使用离子色谱法同时测定卤化物杂质(氟化物、氯化物、溴化物和碘化物)和离子液体 (IL) 阴离子(四氟硼酸盐、六氟磷酸盐和三氟甲磺酸盐)是通过碱性非梯度离子色谱系统开发的。非梯度方法在 AS 22 色谱柱上使用水/乙腈 (70:30 v:v) 中的洗脱液 Na2CO3/NaHCO3,能够在可接受的运行时间(22 分钟)内快速、同时分析不同的离子液体和卤化物阴离子) 且分辨率 R 大于 2.4,容量 k' 介于 0.4 和 5.1 之间,选择性 α 介于 1.3 和 2.1 之间,峰不对称性 As 小于 1.5。可以量化低于 1 ppm(制备的样品溶液的 1 mg·L–1)的卤化物杂质。一系列离子液体,含四氟硼酸盐 [BF4]–、六氟磷酸盐 [PF6]–、和双(三氟甲基磺酰基)亚胺(三氟甲磺酰亚胺)[NTf2]– 阴离子与基于咪唑、吡啶和四氢噻吩的阳离子结合,可以分析其阴离子纯度。IL-阳离子
[EN] ESLICARBAZEPINE ACETATE AND ITS POLYMORPHS<br/>[FR] ACÉTATE D'ESLICARBAZÉPINE ET SES POLYMORPHES
申请人:REDDYS LAB LTD DR
公开号:WO2011091131A2
公开(公告)日:2011-07-28
Processes for the preparation of eslicarbazepine acetate and intermediates thereof. Also provided are polymorphic forms of eslicarbazepine acetate and methods for their preparation.