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114435-02-8Relevant articles and documents
Recyclable polymer-supported iodobenzene-mediated electrocatalytic fluorination in ionic liquid
Sawamura, Takahiro,Kuribayashi, Shunsuke,Inagi, Shinsuke,Fuchigami, Toshio
, p. 2757 - 2760 (2010)
The electrochemical fluorination of organosulfur compounds in triethylamine/hydrofluoric acid (Et3N-5HF) with polystyrene-supported iodobenzene (PSIB) and tetraethylammonium chloride (Et4NCl) was performed successfully in an undivided cell under constant current conditions to afford the corresponding fluorinated compounds in moderate to good yields. Recycle use of the PSIB could be achieved due to its easy separation. Notably, the mediatory activity of the iodobenzene derivative was not appreciably changed even after 10 recycle uses.
Electroorganic synthesis under solvent-free conditions. Highly regioselective anodic monofluorination of cyclic ethers, lactones, and a cyclic carbonate
Hasegawa, Masaru,Ishii, Hideki,Fuchigami, Toshio
, p. 1503 - 1505 (2002)
Regioselective anodic fluorination of cyclic ethers, lactones, and a cyclic carbonate in Et4NF·nHF (n = 4, 5) and Et3N·5HF without a solvent was successfully carried out to give the corresponding monofluorinated products in moderate yields. This is the first report of direct electrochemical fluorination of cyclic ethers, lactones, and a cyclic carbonate using anodic fluorination.
Highly Robust {Ln4}-Organic Frameworks (Ln = Ho, Yb) for Excellent Catalytic Performance on Cycloaddition Reaction of Epoxides with CO2 and Knoevenagel Condensation
Chen, Hongtai,Li, Qiaoling,Liu, Shurong,Lv, Hongxiao,Zhang, Tao,Zhang, Xiutang
, p. 14916 - 14925 (2021/12/09)
Due to the high electron charge, large ion radius, and plentiful outer hybrid orbitals of LnIII cations, microporous Ln-MOFs can be used as Lewis acidic catalysts with high catalytic activity for a variety of organic reactions, which prompts us to explore cluster-based nanoporous Ln-MOFs by employing structure-oriented ligands. Herein, the exquisite combination of coplanar [Ln4(μ3–OH)2(μ2–HCO2)(H2O)2] clusters (abbreviated as {Ln4}) and the structure-oriented multifunctional ligand of 2,6-bis(2,4- dicarboxylphenyl)-4-(4-carboxylphenyl)pyridine (H5BDCP) led to two isomorphic nanoporous frameworks of {(Me2NH2)[Yb4(BDCP)2(μ3–OH)2(μ2–HCO2)(H2O)2]·5DMF·H2O}n (NUC-38Yb) and {(Me2NH2)[Ho4(BDCP)2(μ3–OH)2(μ2– HCO2)(H2O)2]·6DMF·3H2O}n (NUC-38Ho). To the best of our knowledge, NUC-38Ho and NUC-38Yb are rarely reported {Ln4}-based three-dimensional (3D) frameworks with embedded hierarchical triangular-microporous and hexagonal-nanoporous channels, which are shaped by six rows of coplanar {Ln4} clusters and characterized by plentiful coexisting Lewis acid–base sites on the inner wall including open LnIII sites, Npyridine atoms, μ3–OH, and μ2–HCO2. Catalytic experiments performed using NUC-38Yb as the representative exhibited that NUC-38Yb possessed a high catalytic activity on the cycloaddition reactions of epoxides with CO2 under mild conditions, which can be ascribed to its structural advantages including nanoscale channels, rich bifunctional active sites, large surface areas, and chemical stability. Moreover, NUC-38Yb, as a heterogeneous catalyst, could greatly accelerate the Knoevenagel condensation reactions of aldehydes and malononitrile. Hence, this work paves the way for the construction of functional Ln-cluster-based nanoporous metal–organic frameworks (MOFs) by elaborately designing functional ligands with transnormal connection modes.
Process for fluorinating inorganic or organic compounds by direct fluorination
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Paragraph 00273-00274; 0283-0286, (2020/07/14)
The invention relates to the use of a fluorinated gas, wherein the elemental fluorine (F2) is present at a high concentration, the present invention relates to a process for producing fluorinated compounds by direct fluorination using a fluorination gas in which elemental fluorine (F2) is present at a high concentration, such as a concentration of elemental fluorine (F2), in particular equal to much higher than 15 vol% or even 20 vol% (i.e., at least 15 vol% or even 20 vol%), and to a process for producing fluorinated compounds by direct fluorination using a fluorination gas. The process of the present invention relates to the manufacture of fluorinated compounds other than fluorinated benzene by direct fluorination, in particular to the preparation of fluorinated organic compounds, end products and intermediates for use in agricultural, pharmaceutical, electronic, catalyst, solvent and other functional chemical applications. The fluorination process of the invention can be carried outin batches or in a continuous manner. If the process of the invention is carried out in batches, a column (tower) reactor may be used. If the process of the invention is continuous, a microreactor may be used.
