CAS: 4333-62-4; 1,3-Dimethyl-1H-Imidazol-3-Ium Iodide

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📜(1,3-Dimethyl-1,3-Dihydro-2H-Imidazol-2-Ylidene)Diiodo(Pyridine)Palladium 以 1,4-二氧六环,N,N-二甲基甲酰胺 作为反应溶剂,化学反应 21.5H,反应生成 1,3-二甲基咪唑 碘
参考文献:防止pd-nhc键断裂并从纳米级转换为分子催化系统:胺和温度作为催化剂活化剂
标题:防止pd-nhc键断裂并从纳米级转换为分子催化系统:胺和温度作为催化剂活化剂
摘要:Pd配合物与n-杂环卡宾(nhc)配体催化的许多反应都是在通常存在偶合剂或弱碱的胺存在下进行的.但是,胺可以通过多种方式与pd / Nhc配合物反应:通过产生不含nhc的活性钯物质,增强分子催化作用,引起催化剂失活或触发无配体催化方式.这项研究深入了解了有效使用胺作为分子pd / Nhc催化活化剂和防止催化体系中pd-Nhc键发生不希望的还原裂解所需的条件.在25-140oc的温度范围内,检测了pd / Nhc配合物与各种胺的反应以及所得氨基配合物的热稳定性.结果表明胺结构和反应温度对催化剂转化的主要影响.特别是,Pd / Nhc配合物与脂肪族胺配体的热分解主要导致还原性pd-Nhc键裂解,而在强碱存在下,在25-60oc下,具有伯和仲脂肪族胺配体的配合物的去质子化促进了激活分子pd / Nhc催化.在这些发现的基础上,提出了适用于强碱促进的芳基卤化物和硫醇之间的cs交叉偶联反应的高效pd
DOI:10.1039/c9Cy02041A

专利信息

专利号:WO-2025099082-A1
优先权日:2023-11-09
标 题:Improved process for the synthesis of 2,5-dihydroxymethylfuran (bhmf) from 5-hydroxymethylfurfural (hmf)
发明人：MAZZONI RITA; MESSORI ALESSANDRO; PIAZZI ANDREA; SANTARELLI NICOLÃ’; MARTELLI GIULIA; CURCIO MASSIMILIANO; ALBONETTI STEFANIA; TABANELLI TOMMASO
权利人:UNIV BOLOGNA ALMA MATER STUDIORUM
摘要:A synthesis process comprising a step of reacting HMF to obtain BHMF under hydrogen pressure and wherein HMF is contacted with a catalyst mixture, said catalyst mixture comprising a metal catalyst of a transition metal of Group 8 or a salt of said catalyst and optionally an organic solvent.

专利号:US-10577387-B1
优先权日:2018-08-09
标题 :Platinum (II) complexes containing N-heterocyclic carbene ligand and pincer ligands, synthesis, and their applications in cancer treatment
发明人：CHE CHI MING; Fung Sin Ki; Chen tian feng
权利人:UNIV HONG KONG
摘要:Provided herein is a method of synthesis of Pt(II) complexes, a pharmaceutical composition comprises thereof. Also provided herein are the methods for the treatment and prevention of cancer/tumor in patients in need thereof by the administration of the Pt(II) complexes. Also provided is a method of detecting the Pt(II) complex in a biological system. Also provided is a method of making the Pt(II) complex The Pt(II) complexes possess anticancer activity such as the induction of cell death, inhibition of cellular proliferation, and inhibition of tumor growth in vivo.

专利号:US-9334230-B2
优先权日:2009-09-18
标题:Process of forming an amide
发明人：HONG SOON HYEOK; GHOSH SUBHASH CHANDRA; ZHANG YAO; MUTHAIAH SENTHILKUMAR; CHEN CHENG; XU XIANGYA
权利人:HONG SOON HYEOK; GHOSH SUBHASH CHANDRA; ZHANG YAO; MUTHAIAH SENTHILKUMAR; CHEN CHENG; XU XIANGYA; UNIV NANYANG TECH
摘要:A process is provided for the synthesis of an amide. A primary or secondary amine and a primary alcohol, with the amine and the alcohol being either moieties of different reactants or moieties of the same molecule, are contacted in the presence of a Ruthenium (II) catalyst. The Ruthenium (II) catalyst is free of a phosphine ligand. The process is also carried out in the absence of a phosphine. Providing the Ruthenium (II) catalyst includes providing an N-heterocyclic carbene.

专利号:US-2008214386-A1
优先权日:2004-03-01
标题:Catalyst for Cyclic Carbonate Synthesis
发明人：TAKAHASHI TOSHIKAZU; WATAHIKI TSUTOMU; YASUDA HIROYUKI; SAKAKURA TOSHIYASU
权利人:TAKAHASHI TOSHIKAZU; WATAHIKI TSUTOMU; YASUDA HIROYUKI; SAKAKURA TOSHIYASU
摘要:Provided are a solid catalyst which gives a cyclic carbonate at a high yield and a high selectivity, which is stable and which may be readily separated after reaction; and a method of industrially advantageous, inexpensive and safe production of a cyclic carbonate by the use of the catalyst. The catalyst contains an inorganic solid substance having a surface modified with an ionic substance containing a Group 15 element; or contains an ionic substance containing a Group 15 element, and an inorganic solid substance. The modifying group for surface modification of an inorganic solid substance is an ionic substance containing a Group 15 element. The ionic substance containing a Group 15 element is at least one substance selected from organic phosphonium salts, organic ammonium salts, organic arsonium salts and organic antimonium salts.

专利号:CN-115181987-A
优先权日:2022-07-27
标 题 :Method for the synthesis of 3-acylindolazines by electrochemical intramolecular oxidative amination of alkynes

专利号:US-9018325-B2
优先权日:2011-08-25
标题 :Catalyst for living radical polymerization and polymerization method
发明人：GOTO ATSUSHI; KAJI HIRONORI
权利人:GOTO ATSUSHI; KAJI HIRONORI; UNIV KYOTO
摘要:A nonmetallic compound having an ionic bond with a halide ion is used as a catalyst for living radical polymerization. Even if a radical initiator is not used, a monomer can be subjected to a radical polymerization to obtain a polymer having narrow molecular weight distribution. The cost of the living radical polymerization can be remarkably reduced, and it is made possible to prevent adverse effects of using a radical initiator (such as side reactions). The present invention is significantly more environmentally friendly and economically excellent than conventional living radical polymerization methods, due to advantages such as low toxicity of the catalyst, low amount of the catalyst necessary, high solubility of the catalyst, mild reaction conditions, and no coloration/no odor, etc. The catalyst can be applied to various monomers and enables synthesis of high molecular weight polymers.