CAS: 139177-62-1; Dysprosium(Iii) Trifluoromethanesulfonate

该化合物是一种在有机合成中广泛使用的基于亚氰化物的刘易斯酸催化剂,其强的电益特性和高热稳定性使其有效促进Friedel-Crafts对流,电热和其他碳-碳联结形成过程等反应;三氟甲烷硫酸盐(OTf)亚离子增强极地有机溶剂的溶解性,在温和条件下改善再活动.此外,Dy(OTf)3 具有极好的湿度耐力,而且经常可以回收,减少催化应用中的废物.它选择性地激活子体,对非对合成和精细的化学生产具有价值.这种化合物在学术和工业研究中特别有助于开发高效的合成方法.

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139177-64-3 141478-68-4 52093-27-3

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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:US-10294336-B2
    优先权日:2014-11-27
    标题 :Synthesis of polymer polyols in unsaturated polyols, polymer polyols and their use
    发明人:KOENIG CHRISTIAN; EMGE ANDREAS; OTERO MARTINEZ IRAN
    权利人:BASF SE
    摘要:The present invention relates to the synthesis of polymer polyols in unsaturated polyols as liquid phase, polymer polyols and their use.

    专利号:US-6916982-B2
    优先权日:2000-07-21
    标题:Synthesis of perylene-porphyrin building blocks and polymers thereof for the production of light-harvesting arrays
    发明人:LOEWE ROBERT S; TOMIZAKI KIN-YA; LINDSEY JONATHAN S
    权利人:UNIV NORTH CAROLINA STATE
    摘要:The present invention provides methods, compounds, and compositions for the synthesis of light harvesting arrays, such arrays comprising: (a) a first substrate comprising a first electrode; and (b) a layer of light harvesting rods electrically coupled to said first electrode, each of said light harvesting rods comprising a polymer of Formula I:n nX 1 X m+1 ) m   (I)n nwherein m is at least 1; X 1 is a charge separation group, and X 2 through X m+1 are chromophores. At least one of X 2 through X m+1 has at least one perylene group coupled thereto.

    专利号:US-2023047214-A1
    优先权日:2020-02-03
    标题:Methods for microwave synthesis of degradable polymers for drug delivery
    发明人:MURATOGLU ORHUN K; ORAL EBRU; GRINDY SCOTT
    权利人:MASSACHUSETTS GEN HOSPITAL
    摘要:Provided herein are methods of making degradable, additive-blended polymeric materials using microwave radiation and catalysts. The methods can include incorporation of therapeutic materials into the polymeric materials. There also are provided polymeric materials made by the methods and medical devices comprising the polymeric materials made by the methods.

    专利号:US-7022862-B2
    优先权日:2003-08-15
    标 题:Scalable synthesis of dipyrromethanes
    发明人:LINDSEY JONATHAN S; DHANALEKSHMI SAVITHRI; LAHA JOYDEV K; TANIGUCHI MASAHIKO
    权利人:UNIV NORTH CAROLINA STATE
    摘要:A (preferably nonaqueous) method of making a dipyrromethane is described. The comprises the steps of: (a) providing a reaction system consisting essentially of an aldehyde or acetal, excess pyrrole and a catalyst; (b) reacting the aldehyde or acetal with the pyrrole in the reaction system to form the dipyrromethane therein; (c) quenching the reaction system by adding a base thereto (preferably without simultaneously or concurrently adding water and/or an organic solvent thereto); (d) separating the catalyst from the reaction system; and then (e) separating the pyrrole from the reaction system to produce the dipyrromethane as a residual

    专利号:US-2003075216-A1
    优先权日:2000-07-21
    标题 :Synthesis of perylene-porphyrin building blocks and polymers thereof for the production of light-harvesting arrays

    供应商参考报价(招募中)

    品牌试剂参考报价(招募中)

    📌 第三方产品分析报告

    ✅ COA系统入驻 | 共享模式

    主要参考文献

    [参考文献]: Leoni I Palmer, Et Al. Direct And Highly Diastereoselective Synthesis Of Azaspirocycles By A Dysprosium(Iii) Triflate Catalyzed Aza-Piancatelli Rearrangement. Angew Chem Int Ed Engl. 2011 Jul 25;50(31):7167-70.

    合成参考文献


    摘要:Joule, J. A., Science of Synthesis Knowledge Updates, (2010) 2, 251.
    摘要:Joule, J. A., Science of Synthesis Knowledge Updates, (2010) 2, 433.
    摘要:Mérour, J.-Y.; Joseph, B., Science of Synthesis Knowledge Updates, (2017) 1, 290.
    摘要:Kobayashi, S., Science of Synthesis: Water in Organic Synthesis, (2012) 1, 1.
    摘要:Voskressensky, L. G.; Festa, A. A., Science of Synthesis: Multicomponent Reactions, (2013) 2, 332.
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