CAS: 137349-65-6; Bis(Dicyclohexylphosphino)Methane

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CAS号829-84-5 二环己基磷 | CAS号74-95-3 二溴甲烷 | CAS号2071-20-7 双(二苯基膦)甲烷 | CAS号16523-54-9 二环己氯化膦 | CAS号563539-93-5 | CAS号542-18-7 氯代环己烷 | CAS号931-51-1 环己基氯化镁 | CAS号50420-46-7 Cy2PCH3

📜氯代环己烷置于magnesium,三氯化磷体系中,用 四氢呋喃,乙醚 用作溶剂,化学反应 2.5H,反应生成双(二环己基膦)甲烷
参考文献:立体拥挤的二膦甲烷配体:T Bu 2 Pch 2 P T Bu 2及其相关物种的分子结构,紫外光电子能谱和常规合成
标题:立体拥挤的二膦甲烷配体:T Bu 2 Pch 2 P T Bu 2及其相关物种的分子结构,紫外光电子能谱和常规合成
摘要:一系列的高度拥挤对称和不对称diphosphinomethanes-[r 2 Pch 2 Pr' 2,重要配体在过渡金属化学和催化方面,即t Bu 2 Pch 2 P T Bu 2 (dtbpm,1),Cy 2 Pch 2 Pcy 2 (dcpm,2),T Bu 2 Pch 2 Pcy 2 (ctbpm,3),T Bu 2 Pch 2 P I Pr 2 (iptbpm,4)和t Bu 2 Pch 2 Pph 2 (ptbpm,5),已使用一般便捷的路线以高收率制备,详细说明请参见1.除4是无色液体外,这些化合物在室温下为结晶固体.它们的分子结构已经通过单晶x射线衍射以及更高的同系物1,T Bu 2 Ch 2 Ch 2 T Bu 2 (dtbpe,6)进行了测定.的氧化钛的固态结构1,吨卜2 P(o)ch 2 P(o)吨卜2 (7),和两个phospho阳离子衍生自1的质子化[ T Bu
Doi:10.1039/b210114A

专利信息

专利号:US-7098355-B2
优先权日:2001-09-28
标题 :Process for synthesis of organometallic compounds
发明人：HIRAIKE HIROSHI; MORITA TAKEHARU; OZAWA FUMIYUKI; KATAYAMA HIROYUKI
权利人:SEKISUI CHEMICAL CO LTD
摘要:A method for synthesizing an organometallic compound, which is usefully utilized as a catalyst for manufacturing polyolefins by ring-opening metathesis polymerization of an olefin having strain in a molecule such as dicyclopentadiene or synthesizing epothilones by ring-dosing metathesis reaction, by an efficient and low cost synthesis method using a starting material which is easily available due to relatively simple chemical structure, and further without any possibility of coexistence of a vinylhetero compound or a vinyl compound exchanged which tends to accompany as an impurity in the system in conventional methods, characterized by reacting a starting material comprising a zero-valent transition metal complex (A) or a polyvalent transition metal complex (A′), a compound (B) or (B′) shown by the following general formula (1) or (4), respectively, and a neutral ligand (C) or (C′), in one step under non-reducing condition or reducing condition.n nR 1 Y 1 CR 2 X 1 2   (1)n nR 4 Y 2 CR 5 X 2 2   (4)

专利号:US-11174213-B2
优先权日:2018-10-12
标题:Effects of catalyst concentration and solid activator on nickel-mediated olefin/carbon dioxide coupling to acrylates
发明人：Iacono Pasquale; HLAVINKA MARK L
权利人:CHEVRON PHILLIPS CHEMICAL CO LP
摘要:This disclosure provides for routes of synthesis of acrylic acid and other α,β-unsaturated carboxylic acids and their salts, including catalytic methods. For example, there is provided a process for producing an α,β-unsaturated carboxylic acid or a salt thereof, the process comprising: (1) contacting in any order, a group 8-11 transition metal precursor, an olefin, carbon dioxide, a diluent, and a metal-treated chemically-modified solid oxide such as a sulfur oxoacid anion-modified solid oxide, a phosphorus oxoacid anion-modified solid oxide, or a halide ion-modified solid oxide, to provide a reaction mixture; and (2) applying reaction conditions to the reaction mixture suitable to produce the α,β-unsaturated carboxylic acid or the salt thereof. Methods of regenerating the metal-treated chemically-modified solid oxide are described.

专利号:WO-2015132031-A1
优先权日:2014-03-05
标 题 :Synthesis of alpha.beta-unsaturated carboxylic acids from olefins
发明人：SCHÄFFNER BENJAMIN; BLUG MATTHIAS; HENDRIKSEN COEN; VOGT DIETER
权利人:EVONIK DEGUSSA GMBH; SCHÄFFNER BENJAMIN; BLUG MATTHIAS; HENDRIKSEN COEN; VOGT DIETER
摘要:The present invention relates to a process for the preparation of α,β-unsaturated carboxylic acids or salts thereof, by reaction of an olefin which has 2 or 3 carbon atoms with carbon dioxide in the presence of a catalyst which has an element E of groups 4, 6, 7, 8, 9 or 10 of the Periodic Table of the Elements, optionally a solvent and a salt which has a halide anion, which is characterized in that the reaction takes place in the presence of a medium-strength base, with the proviso that the medium-strength base is different from the salts used and any solvents present.

专利号:US-2025002508-A1
优先权日:2020-05-05
标题 :Boronic acid derivatives and synthesis, polymorphic forms, and therapeutic uses thereof
发明人：HECKER SCOTT J; BOYER SERGE HENRI; BIO MATTHEW M; FANG YUANQING; GONZALES DE CASTRO ANGELA; LEFORT LAURENT; ZHU ZUOLIN; LINDER THOMAS
权利人:QPEX BIOPHARMA INC
摘要:Disclosed herein are antimicrobial compounds, polymorphic forms, compositions, pharmaceutical compositions, the method of use and preparation thereof. Some embodiments relate to boronic acid derivatives and their use as therapeutic agents, for example, β-lactamase inhibitors (BLIs).

专利号:US-12162829-B2
优先权日:2021-12-16
标 题:Gas phase process for acrylate production from ethylene and carbon dioxide
发明人：Iacono Pasquale; SUTHERLAND JAMIE N; ASH CARLTON E; RAMANATHAN ANAND
权利人:CHEVRON PHILLIPS CHEMICAL CO LP
摘要:Catalysts and catalytic processes for the synthesis of acrylic acid and other α,β-unsaturated carboxylic acids and their salts, which are carried out in a diluent or in the absence of a diluent. In an aspect, ethylene and CO2 can be contacted with a Group 8-11 transition metal precursor compound or a Group 8-11 transition metal metalalactone compound in the presence of a metal-treated chemically-modified solid oxide (MT-CMSO) or a metal-treated solid oxide (MT-SO), to form a metal acrylate. As the catalytic activity wanes in either the presence or absence of a diluent, pressure cycling—that is, pressurizing the reaction system with CO2 and an olefin such as ethylene for a time period, releasing the pressure, then re-pressurizing with CO2 and ethylene—can rejuvenate the catalyst and restore its declining catalytic activity.

专利号:US-2006030723-A1
优先权日:2001-09-28
标 题:Process for synthesis of organometallic compounds