CAS: 76089-77-5; Cerium(Iii) Trifluoromethanesulfonate

该化合物是一种在有机合成中广泛使用的高效的刘易斯酸催化剂,其强烈的亲电性和湿度稳定性使得它对于Friedel-Crafts藻类,cyltations和Diels-Alder环球添加物等反应具有特别宝贵的价值.与传统的刘易酸不同,Ce(OTf)3 对水和空气具有极好的耐受力,简化了处理和储存.三叶化离子会增加极地溶剂的溶解性,扩大其在同质催化中的可应用性.此外,与金属卤化物替代品相比,它显示出高度的可循环性和最小的腐蚀性.这些特性使得它更倾向于选择选择性的和有环境意识的合成方法.

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欧盟法规

C&L通报

上下游产品

trifluorormethanesulfonic acid cerium trichloride cerium(III) chlorideCarbonyl fluoride cerium chloride cerium(III) fluoride tris(bis(trimethylsilylamido))cerium(III)

合成工艺路线路线简述

    专利信息


    专利号:US-11926589-B2
    优先权日:2019-07-09
    标 题 :Process for the synthesis of non-racemic cyclohexenes
    发明人:REISMAN SARAH; ROMBOLA MICHAEL; LADD CAROLYN L; MCLAUGHLIN MARTIN JOHN; ZUEND STEPHAN; GOETZ ROLAND
    权利人:BASF CORP; CALIFORNIA INST OF TECHN
    摘要:This invention relates to a process for the synthesis of a non-racemic cyclohexene compound of formula (I) by a Diels-Alder reaction of a compound of formula (II) with a compound of formula (III) wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 and Y have the meanings as defined in the description in the presence of a catalyst comprising at least one m-valent metal cation M m+ wherein the metal M is selected from Scandium (Sc), Yttrium (Y), Lanthanum (La), Cerium (Ce), Praseodymium (Pr), Neodymium (Nd), Promethium (Pm), Samarium (Sm), Europium (Eu), Gadolinium 15 (Gd), Terbium (Tb), Dysprosium (Dy), Holmium (Ho), Erbium (Er), Thulium (Tm), Ytterbium (Yb), Lutetium (Lu), Gallium (Ga) and Indium (In), and m is an integer of 1, 2 or 3, and a chiral ligand of the formula (IV) wherein R 10a , R 10b , R 10c , R 10d , R 10a′ , R 10b′ , R 10c′ , R 10d′ , Z and Z′ have the meanings as defined in the description.

    专利号:WO-2024185734-A1
    优先权日:2023-03-03
    标 题:Polyphosphorylated nucleoside, phosphate-activated nucleotide used for synthesis of polyphosphorylated nucleoside and method for synthesis of same, and method for synthesis of polyphosphorylated nucleoside using phosphate-activated nucleotide
    发明人:KATAOKA MASANORI; FUKUI CHIHARU; TSUJI YOHEI; FUJIMURA Kazuma
    权利人:NATIAS INC
    摘要:The present invention provides: a polyphosphorylated nucleoside which has a structure represented by formula (I) and can be efficiently produced by a short process and a simple operation with use of a less expensive material; a phosphate-activated nucleotide which is used for the synthesis of the polyphosphorylated nucleoside and a method for the synthesis of this phosphate-activated nucleotide; and a method for the synthesis of a polyphosphorylated nucleoside using a phosphate-activated nucleotide. In the formula, B represents a protected or unprotected, natural or artificial nucleoside base; R 1 , R 2 , R 4 and R 5 each represent H or an alkyl group or the like, and R 1 , R 2 , R 4 and R 5 may be the same as or different from each other; X and Y each represents H, OH, OCH 3 or the like; h represents an integer of 1 to 3; p, n, m and q each represent 0 or an integer, and p, n, m and q are in no particular order; and (p + n + m + q) is an integer of 0 to 5,000.

    专利号:US-10155772-B2
    优先权日:2010-07-08
    标题:Process for the synthesis of substituted morphinans
    发明人:DUNCAN SCOTT
    权利人:ALKERMES PHARMA IRELAND LTD
    摘要:The invention further relates to a process for the synthesis of 3-carboxamide substituted morphinans where a 3-cyano substituted 6-oxo substituted morphinan is reacted with a 1,3-diol.

    专利号:WO-2017030685-A1
    优先权日:2015-08-14
    标题 :One-pot synthesis of anhydropentitol mono- and diethers
    发明人:STENSRUD KENNETH
    权利人:ARCHER DANIELS MIDLAND CO
    摘要:A process for preparing anhydropentitol mono- and diethers from C 5 sugar alcohols is described. The process involves performing in a single reaction vessel consolidated reactions that a) cyclize dehydratively a linear C 5 sugar alcohol and b) etherify a resulting anhydropentitol. Each of the reactions is catalyzed by a very low amount of a water-tolerant Lewis acid catalyst relative to the starting sugar-alcohol. Depending on the reaction conditions, the synthesis method is efficient, selective and affords good yields of mono- and diethers. The anhydropentiol ethers can serve as renewable substitute precursors of petroleum incumbents for use in the making of surfactants and plasticizers.

    专利号:WO-2017100402-A1
    优先权日:2015-12-11
    标 题 :One-pot synthesis of anhydropentitol esters from pentitols, catalyzed by water-tolerant lewis acids
    发明人:STENSRUD KENNETH
    权利人:ARCHER DANIELS MIDLAND CO
    摘要:A procedure for preparing anhydropentitol mono, di, and tri esters is described. The process is performed in a single vessel and involves sequential dehydrative cyclization and carboxylic acid acylation steps. Each step is catalyzed by low loadings of a water-tolerant Lewis acid catalyst. The method of synthesis is efficacious and depending on the reaction condition, generates modest to high yields of the target mono-, di-, and triesters. The esters can be practical surrogates of incumbent petroleum materials of similar structure used for surfactants and plasticizers.

    专利号:US-5525325-A
    优先权日:1989-03-06
    标 题 :Expanded porphyrins: large porphyrin-like tripyrroledimethine-derived macrocycles
    发明人:SESSLER JONATHAN L; HEMMI GREGORY W; MURAI TOSHIAKI
    权利人:REGENTS UNIVERSITY OF TEXAS BO
    摘要:The present invention involves a novel tripyrrole dimethine-derived 'expanded porphyrin' (texaphyrin), the synthesis of such compounds, their analogs or derivatives and their uses. These expanded porphyrin-like macrocycles are efficient chelators of divalent and trivalent metal ions. Metal complexes of these compounds are active as photosensitizers for the generation of singlet oxygen and thus potentially for inactivation or destruction of human immunodeficiency virus (HIV-1), mononuclear or other cells infected with such virus and tumor cells as well. A variety of texaphyrin derivatives have been produced and many more are readily obtainable. Various metal (e.g., transition, main group, and lanthanide) complexes with the texaphyrin and texaphyrin derivatives of the present invention have unusual water solubility and stability which render them particularly useful. These metallotexaphyrin complexes have optical properties making them unique as compared to existing porphyrin-like or other macrocycles. For example, they absorb light strongly in a physiologically important region (i.e. 690-880 nm). These complexes also form long-lived triplet states in high yield and act as efficient photosensitizers for the formation of singlet oxygen. These properties, coupled with their high chemical stability and appreciable solubility in polar media such as water, add to their usefulness.
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    合成参考文献


    摘要:Dissanayake, P.; Averill, D. J.; Allen, M. J., Science of Synthesis Knowledge Updates, (2011) 4, 7.
    摘要:Tsubouchi, A., Science of Synthesis Knowledge Updates, (2016) 2, 329.
    摘要:Kobayashi, S., Science of Synthesis: Water in Organic Synthesis, (2012) 1, 1.
    摘要:Ohshima, T., Science of Synthesis: Applications of Domino Transformations in Organic Synthesis, (2015) 1, 584.
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