CAS: 1702-42-7; Methyltributylphosphoniumiodide

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7392-50-9 2304-30-5 3115-68-2

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CAS号998-40-3 三丁基膦 | CAS号74-88-4 碘甲烷 | CAS号86671-55-8 1,4-bis-(tribut...

📜三丁基膦,碘甲烷 以 正己烷 用作溶剂,以97.5%的收率获得三丁基甲基碘化膦
参考文献:异氰酸酯的磷催化低聚反应中中间体的机理分析和表征
标题:异氰酸酯的磷催化低聚反应中中间体的机理分析和表征
摘要:通过低温31 P和15 N NMR光谱结合计算化学研究了三烷基膦催化的脂肪族异氰酸酯低聚机理.提出了一种修订的机制,其中包含几种(螺)环五配位磷中间体.通过使用15种n标记的异氰酸酯进行实验,已经重新评估了先前报道的瞬态中间体的光谱数据,并将其分配给包含pn键的环状中间体.已经使用量子化学方法计算了支持该分配的13 C,15 N和31 P NMR位移.
Doi:10.1002/chem.201804016

专利信息

专利号:US-6399536-B2
优先权日:2000-02-11
标 题 :High performance catalyst systems for the synthesis of alkylenecarbonates
发明人：KIM HOON SIK; LEE BYUNG GWON; LEE SANG DEUK; KWON YOUNG SOO; LEE HYUN JOO
权利人:KOREA INST SCI & TECH
摘要:A catalyst of the formula (1) for the synthesis of alkylene carbonate by reacting alkylene oxide and carbon dioxide n n n L m MX n   (1) n n n wherein L is selected from a group of pyridines; n M is a metal atom selected from Zn, Fe, Mn, Pb and In; n X is a halogen atom selected from Cl, Br and I; n m is 1 or 2, and n n is 2 or 3.

专利号:US-6407264-B2
优先权日:2000-02-11
标 题:Synthesis of alkylene carbonates using a catalyst system comprising metal halide and pyridine or pyridine derivative
发明人：KIM HOON SIK; KIM JAI JUN; LEE BYUNG GWON; KIM HONG GON
权利人:KOREA INST SCI & TECH
摘要:The present invention relates to a method to prepare alkylene carbonate of the formula (1) n wherein, R 1 and R 2 are each independently H; C 1 -C 4 alkyl or phenyl group; n which method characterized by reacting alkylene oxide with carbon dioxide in the presence of a catalyst system comprising a) metal halide [MX m ] and b) pyridine or pyridine derivative [Py], wherein Py is selected from a group of pyridines; M is a metal atom selected from the group consisting of Zn, Fe, Mn, Pb and In; X is a halogen selected from the group consisting of Cl, Br and I; and m is 2 or 3.

专利号:US-4629807-A
优先权日:1986-02-06
标 题 :Selective synthesis of aliphatic dicarboxylic acid esters using palladium-phosphine or palladium-arsine catalysts
发明人：KNIFTON JOHN F
权利人:TEXACO INC
摘要:A process for preparing aliphatic dicarboxylic acid esters from aliphatic, non-conjugated dienes via carbonylation in the presence of a homogeneous palladium-phosphine catalyst or a palladium-phosphine melt catalyst.

专利号:US-4556734-A
优先权日:1983-11-04
标 题:Process for synthesizing formamides from synthesis gas plus ammonia
发明人：KNIFTON JOHN F
权利人:TEXACO INC
摘要:A process is disclosed for the production of formamides, particularly N,N-dimethylformamide and N-methylformamide, by the reaction of synthesis gas with ammonia in the presence of a catalyst system comprising a ruthenium species coupled with quaternary phosphonium salts. The catalyst system typically produces high yields of formamides, a large percentage of which may comprise N,N-dimethylformamide, N-methylformamide or formamide itself.

专利号:US-11504701-B2
优先权日:2019-11-28
标题 :Catalytic formulation for producing propylene cyclic carbonate from carbon dioxide using a potassium iodide catalyst
发明人：GUZMAN PANTOJA JAVIER; MENESES RUIZ EDITH; AGUILAR BARRERA CANDIDO; RODRIGUEZ HERNANDEZ ANDREA; GARCIA CRUZ ISIDORO; MUNOZ ARROYO JOSE ANTONIO; GAYTAN RAMOS JUAN CARLOS
权利人:MEXICANO INST PETROL
摘要:This invention is related to the synthesis of organic carbonates from carbon dioxide and epoxides. It is particularly focused on the production of propylene cyclic carbonate from propylene oxide. The proposed catalytic materials includes a support made of aluminum oxyhydroxide (Catapal B®), nitric acid, acetic acid and/or phosphoric acid. An important stage is the physical and chemical conditioning of the catalytic materials and to this end, experimental methodologies such as spheronization and thermal treatments were implemented prior the evaluation process.

专利号:US-2001019993-A1
优先权日:2000-02-11
标 题:High performance catalyst systems for the synthesis of alkylenecarbonates