Direct Fluorination of Cyclic Carbonates andcloso-K2[B12H12] in a Slug-Flow Ministructured Reactor

Direct Fluorination of Cyclic Carbonates andcloso-K2[B12H12] in a Slug-Flow Ministructured Reactor
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团状流微型结构反应器中环状碳酸酯和closo-K2[B12H12]的直接氟化

DOI:
10.1002/cplu.201200267
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发表时间:
2013
期刊:
影响因子:
3.4
通讯作者:
I. Krossing
I. Krossing
中科院分区:
化学3区
文献类型:
--
作者:
M. Hill;P. Baron;K. Cobry;S. Goll;P. Lang;C. Knapp;H. Scherer;P. Woias;P. Zhang;I. Krossing

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研究了一种新型微型反应器,用于有机物和无机物的直接硝化。该反应器由镀镍铜块组成,带有机械加工的1 mm通道,并配备主动冷却系统。 介绍了碳酸亚乙酯和碳酸亚丙酯的直接酯化反应。对于氟化碳酸亚丙酯,测定了各种氟化异构体的NMR数据。在可靠的G3理论水平上计算了碳酸乙烯酯和碳酸丙烯酯直接酯化反应的吉布斯反应能。环状碳酸酯对高氟和HF浓度的优异分解稳定性也使它们有资格作为用于直接氟化方法的良好溶剂,特别是用于离子底物。在这方面,提出了无机盐Closo-K2 [B12 H12]在环状碳酸酯中的直接结晶。
A novel minireactor for direct fluorination of organic and inorganic substances was tested. The reactor consists of nickel‐coated copper blocks with mechanically machined 1 mm channels and is equipped with an active cooling system. The direct fluorination of ethylene carbonate and propylene carbonate is described. For the fluorinated propylene carbonate, the NMR data of various fluorinated isomers were determined. The Gibbs reaction energies for the direct fluorination of ethylene and propylene carbonate were calculated at the reliable G3 level of theory. The excellent decomposition stability of the cyclic carbonates against high fluorine and HF concentrations also qualifies them as good solvents for direct fluorination processes, especially for ionic substrates. In this respect, the direct fluorination of the inorganic saltcloso‐K2[B12H12] in cyclic carbonates is presented.
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