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    • 14. 发明申请
    • CYCLOADDITION OF AZIDES AND ALKYNES
    • 氨基酸和碱基的循环
    • US20090069569A1
    • 2009-03-12
    • US12209323
    • 2008-09-12
    • Steven P. NolanSilvia Diez-Gonzalez
    • Steven P. NolanSilvia Diez-Gonzalez
    • C07D249/04
    • C07D249/04C07D249/06C07D401/04C07D405/06
    • This invention provides a process which comprises contacting, in a reaction zone, at least one organic azide, at least one alkyne, and at least one N-heterocyclic carbene copper compound in which the ligands are either (i) a halide and an N-heterocyclic carbene or (ii) two N-heterocyclic carbenes and a BF4− or PF6− anion, to form a 1,2,3-triazole in which at least the 1 and 4 positions each has a substituent. The N-heterocyclic carbene either an imidazol-2-ylidene in which the 1 and the 3 positions each has a substituent which has at least one carbon atom, or a 4,5-dihydro-imidazol-2-ylidene in which the 1 and the 3 positions each has a substituent which has at least one carbon atom.
    • 本发明提供了一种方法,该方法包括在反应区中使至少一种有机叠氮化物,至少一种炔和至少一种N-杂环卡宾铜化合物接触,其中配体为(i)卤化物和N- 杂环卡宾或(ii)两个N-杂环卡宾和BF4-或PF6-阴离子形成1,2,3-三唑,其中至少1和4位各自具有取代基。 N-杂环卡宾或其中1个和3个位置各自具有至少一个碳原子的取代基的咪唑-2-亚基或4,5-二氢 - 咪唑-2-亚基,其中1和 3个位置各自具有至少一个碳原子的取代基。
    • 16. 发明授权
    • Use of a catalyst system comprising nickel, palladium, or platinum and imidazoline-2-ylidene of imidazolidine-2-ylidene in suzuki coupling reactions
    • 在铃木耦合反应中使用包含镍,钯或铂和咪唑啉-2-亚基或咪唑烷-2-亚基的催化剂体系
    • US06403801B1
    • 2002-06-11
    • US09507959
    • 2000-02-22
    • Steven P. NolanJinkun HuangMark L. TrudellChunming Zhang
    • Steven P. NolanJinkun HuangMark L. TrudellChunming Zhang
    • C07F980
    • C07B37/04
    • This invention provides a process for conducting Suzuki coupling reactions. The processes of the present invention make use of N-heterocyclic carbenes as ancillary ligands in Suzuki couplings of aryl halides and aryl pseudohalides. A Suzuki coupling can be carried out by mixing, in a liquid medium, at least one strong base; at least one aryl halide or aryl pseudohalide in which all substituents are other than boronic acid groups, wherein the aryl halide has, directly bonded to the aromatic ring(s), at least one halogen atom selected from the group consisting of a chlorine atom, a bromine atom, and an iodine atom; at least one arylboronic acid in which all substituents are other than chlorine atoms, bromine atoms, iodine atoms, or pseudohalide groups; at least one metal compound comprising at least one metal atom selected from nickel, palladium, and platinum, wherein the formal oxidation state of the metal is zero or two; and at least one N-heterocyclic carbene. One preferred type of N-heterocyclic carbene is an imidazoline-2-ylidene of the formula wherein R1 and R2 are each, independently, alkyl or aryl groups having at least 3 carbon atoms, R3 and R4 are each, independently, a hydrogen atom, a halogen atom, or a hydrocarbyl group.
    • 本发明提供了进行Suzuki偶联反应的方法。 本发明的方法利用N-杂环卡宾作为芳基卤化物和芳基拟卤化物的Suzuki偶联中的辅助配体。 Suzuki偶联可以通过在液体介质中混合至少一个强碱来进行; 至少一种芳族卤化物或芳基拟卤化物,其中所有取代基都不是硼酸基团,其中所述芳基卤具有直接键合到芳族环上的至少一个选自氯原子, 溴原子和碘原子; 至少一个芳基硼酸,其中所有取代基不是氯原子,溴原子,碘原子或拟卤化物基团; 至少一种金属化合物,其包含至少一种选自镍,钯和铂的金属原子,其中所述金属的形式氧化态为零或二; 和至少一个N-杂环卡宾。 N-杂环卡宾的一种优选类型是式R 2的咪唑啉-2-亚基,R 2各自独立地为具有至少3个碳原子的烷基或芳基,R 3和R 4各自独立地为氢原子, 卤素原子或烃基。
    • 20. 发明授权
    • Synthesis of 1,3 distributed imidazolium salts
    • 1,3分散咪唑鎓盐的合成
    • US07109348B1
    • 2006-09-19
    • US10653688
    • 2003-09-02
    • Steven P. Nolan
    • Steven P. Nolan
    • C07D233/54
    • C07D233/56
    • Imidazolium salts are the immediate precursors to N-heterocyclic carbenes (NHC) yet a simple, general synthetic route to a wide variety of imidazolium salts is not yet available. Such a straightforward route is described for two specific members of this family of ligand precursor: 1,3-Bis(2,4,6-trimethylphenyl)imidazolium chloride (IMes.HCl) and 1,3-Bis(2,6-diispropylphenyl)imidazolium chloride (IPr.HCl). The procedure appears general and similar protocols can be used to isolate various imidazolium salts.
    • 咪唑盐是N-杂环卡宾(NHC)的直接前体,但是尚未提供到各种咪唑鎓盐的简单的通用合成途径。 对这种配体前体家族的两个特定成员描述了这种简单的途径:1,3-双(2,4,6-三甲基苯基)氯化咪唑(IMes.HCl)和1,3-双(2,6-二 )氯化咪唑(IPr.HCl)。 该方法看起来通用,并且可以使用类似的方案来分离各种咪唑鎓盐。