CAS: 338800-13-8; 2,6-Bis((Di-Tert-Butylphosphino)Methyl)Pyridine

上下游产品

2,6-Bis[(Di-Tert-Butylphosphino)Methyl]Pyridine P,P′-Dioxide 1584149-53-0

📜2,6-二氯甲基吡啶置于lithium Aluminium Tetrahydride,草酰氯,氢化铝钠,Sodium Hydride,亚磷酸二乙酯体系中,用 四氢呋喃,乙醚,二氯甲烷,正戊烷 用作溶剂,化学反应 38.5H,反应生成2,6-双(二叔丁基膦基甲基)吡啶
参考文献:1,2-双(二烷基膦基)乙烷的便捷合成方案.
标题:1,2-双(二烷基膦基)乙烷的便捷合成方案.
摘要:通过中间体氯代氯化phosph的新型氢化铝铝/氢化钠还原方案,可以容易地由母体氧化膦制备1,2-双(二烷基膦基)乙烷.该方法适用于多克合成,使用容易获得且便宜的试剂,并且在最终的还原步骤中得益于简便的非水后处理.
Doi:10.1002/adsc.201300787

专利信息

专利号:US-9045381-B2
优先权日:2010-10-19
标 题:Ruthenium complexes and their uses in processes for formation and/or hydrogenation of esters, amides and derivatives thereof
发明人：MILSTEIN DAVID; BALARAMAN EKAMBARAM; GUNANATHAN CHIDAMBARAM; GNANAPRAKASAM BOOPATHY; ZHANG JING
权利人:MILSTEIN DAVID; BALARAMAN EKAMBARAM; GUNANATHAN CHIDAMBARAM; GNANAPRAKASAM BOOPATHY; ZHANG JING; YEDA RES & DEV
摘要:The present invention relates to novel Ruthenium catalysts and related borohydride complexes, and the use of such catalysts, inter alia, for (1) hydrogenation of amides (including polyamides) to alcohols and amines; (2) preparing amides from alcohols with amines (including the preparation of polyamides (e.g., polypeptides) by reacting dialcohols and diamines and/or by polymerization of amino alcohols); (3) hydrogenation of esters to alcohols (including hydrogenation of cyclic esters (lactones) or cyclic di-esters (di-lactones) or polyesters); (4) hydrogenation of organic carbonates (including polycarbonates) to alcohols and hydrogenation of carbamates (including polycarbamates) or urea derivatives to alcohols and amines; (5) dehydrogenative coupling of alcohols to esters; (6) hydrogenation of secondary alcohols to ketones; (7) amidation of esters (i.e., synthesis of amides from esters and amines); (8) acylation of alcohols using esters; (9) coupling of alcohols with water to form carboxylic acids; and (10) dehydrogenation of beta-amino alcohols to form pyrazines. The present invention further relates to the novel uses of certain pyridine Ruthenium catalysts.

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:US-9663594-B2
优先权日:2014-05-15
标 题 :Synthesis of aryl coupled bis phenoxides and their use in olefin polymerization catalyst systems with activator-supports
发明人：HLAVINKA MARK L
权利人:CHEVRON PHILLIPS CHEMICAL CO LP; CHEVRON PHILIPS CHEMICAL COMPANY LP
摘要:Disclosed herein are methods of making bis(phenol) ligand compounds and transition metal bis(phenolate) compounds. The transition metal bis(phenolate) compounds can be used as components in catalyst systems for the polymerization of olefins.

专利号:US-9944579-B2
优先权日:2015-01-15
标题 :Catalytic hydrogenation process for the synthesis of terminal diols from terminal dialkyl aliphatic esters
发明人：BALARAMAN EKAMBARAM; SAHOO MANOJ KUMAR
权利人:COUNCIL SCIENT IND RES
摘要:A phosphorus ligand-free, mild, efficient and complete catalytic hydrogenation process is for the sustainable production of terminal diols from renewable terminal dialkyl esters with improved yield. Soluble, phosphorus ligand free Ru (II)-pincer type complexes can be used as catalysts in the hydrogenation process.

专利号:US-2016223559-A1
优先权日:2015-02-02
标题:Tetrazine-containing compounds and synthetic methods thereof
发明人：DEVARAJ NEAL K; WU HAOXING; YANG JUN
权利人:UNIV CALIFORNIA
摘要:Described herein are tetrazine derivatives and efficient synthetic methods of synthesis thereof using elimination-Heck cascade reaction. Provided herein is the synthesis of conjugated tetrazines from the tetrazine derivatives. Also provided herein are methods of use of the conjugated tetrazines as fluorogenic probes for live-cell imaging.

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.