Metal Porphyrin Catalyzed Olefin Aziridination with Sulfonyl Azides
    1.
    发明申请
    Metal Porphyrin Catalyzed Olefin Aziridination with Sulfonyl Azides 审中-公开
    金属卟啉用磺酰叠氮化物催化烯化氮丙啶化

    公开(公告)号:US20110112288A1

    公开(公告)日:2011-05-12

    申请号:US12935309

    申请日:2009-03-31

    IPC分类号: C07F15/06 C07D203/24

    摘要: Cobalt(II) complex of P1 [Co(P1)], a new porphyrin that was designed on the basis of potential hydrogen bonding interactions in the metal-nitrene intermediate, is a highly active catalyst for olefin aziridination with azides. The [Co(P1)]-based system can be effectively employed for different combinations of aromatic olefins and arysulfonyl azides, synthesizing various sulfonylated aziridines in excellent yields. Besides its mild catalytic conditions, the Co-catalyzed aziridination process enjoys several attributes associated with the relatively low cost of cobalt and widely accessible arylsulfonyl azides. Furthermore, it generates stable dinitrogen as the only by-product.

    摘要翻译: 基于金属 - 硝酸中间体中潜在的氢键相互作用而设计的新的卟啉P1 [Co(P1)]的钴(II)络合物是用于与叠氮化物进行烯烃氮丙啶化的高活性催化剂。 基于[Co(P1)]的系统可以有效地用于芳族烯烃和芳磺酰叠氮化物的不同组合,以优异的产率合成各种磺酰化氮丙啶。 除了其温和的催化条件之外,共催化的氮丙啶化方法具有与钴和可广泛使用的芳基磺酰基叠氮化物相对低的成本相关的几个属性。 此外,它产生稳定的二氮作为唯一的副产物。

    ENANTIOSELECTIVE CYCLOPROPENATION OF ALKYNES
    4.
    发明申请
    ENANTIOSELECTIVE CYCLOPROPENATION OF ALKYNES 审中-公开
    烷基的选择性环丙基

    公开(公告)号:US20130030170A1

    公开(公告)日:2013-01-31

    申请号:US13364570

    申请日:2012-02-02

    摘要: The cobalt(II) complex of new D2-symmetric chiral porphyrin 3,5-DiMes-ChenPhyrin, [Co(P2)], has been shown to be a highly effective chiral metalloradical catalyst for enantioselective cyclopropenation of alkynes with acceptor/acceptor-substituted diazo reagents such as α-cyanodiazoacetamides and α-cyanodiazoacetates. The [Co(P2)]-mediated metalloradical cyclopropenation is suitable to a wide range of terminal aromatic and related conjugated alkynes with varied steric and electronic properties, providing the corresponding tri-substituted cyclopropenes in high yields with excellent enantiocontrol of the all-carbon quaternary stereogenic centers. In addition to mild reaction conditions, the Co(II)-based metalloradical catalysis for cyclopropenation features a high degree of functional group tolerance.

    摘要翻译: 新型D2对称手性卟啉3,5-DiMes-ChenPhyrin [Co(P2)]的钴(II)配合物已被证明是一种高效的手性金相催化剂,用于对炔诺酮与对映体/受体取代的对映选择性环丙化 重氮试剂如α-氰基二异氰酸乙酰胺和α-氰基二异氰酸酯。 [Co(P2)]介导的金属偶联环化适用于具有不同空间和电子性质的多种末端芳族和相关的共轭炔,以高产率提供相应的三取代环丙烯,具有优异的全碳季铵化对映体 立体中心。 除了温和的反应条件外,用于环丙烯化的Co(II)基金属离子催化具有高度的官能团耐受性。

    Asymmetric Cobalt-Catalyzed Cyclopropanation With Succinimidyl Diazoacetate
    5.
    发明申请
    Asymmetric Cobalt-Catalyzed Cyclopropanation With Succinimidyl Diazoacetate 审中-公开
    琥珀酰亚胺基重氮乙酸不对称钴催化环丙烷化

    公开(公告)号:US20120077959A1

    公开(公告)日:2012-03-29

    申请号:US13201544

    申请日:2010-02-16

    摘要: Cobalt(II) complexes of the D2-symmetric chiral porphyrins are effective catalysts for asymmetric cyclopropanation reactions with succinimidyl diazoacetate. The Co-catalyzed reaction is suitable for various olefins, providing the corresponding cyclopropane succinimidyl esters in high yields and excellent diastereo- and enantio-selectivity. The resulting enantioenriched cyclopropane succinimidyl esters can serve as convenient synthons for the general synthesis of optically active cyclopropyl carboxamides through mild reactions with a wide range of amine derivatives, including unprotected peptides and amino sugars

    摘要翻译: D2对称手性卟啉的钴(II)络合物是与重氮乙酸琥珀酰亚胺不对称环丙烷化反应的有效催化剂。 共催化反应适用于各种烯烃,以高产率提供相应的环丙烷琥珀酰亚胺酯,具有优异的非对映异构选择性。 所得到的对映异氰酸环丙烷琥珀酰亚胺酯可以作为通用光学活性环丙基甲酰胺合成的方便合成物,通过与广泛范围的胺衍生物的温和反应,包括未保护的肽和氨基糖

    Chiral porphyrins, chiral metalloporphyrins, and methods for synthesis of the same
    8.
    发明授权
    Chiral porphyrins, chiral metalloporphyrins, and methods for synthesis of the same 有权
    手性卟啉,手性金属卟啉及其合成方法

    公开(公告)号:US07417142B2

    公开(公告)日:2008-08-26

    申请号:US10967601

    申请日:2004-10-18

    IPC分类号: C07D487/22 C07B47/00

    CPC分类号: C07D487/22

    摘要: Novel methods of synthesizing heteroatom-containing chiral porphyrins and chiral metalloporphyrins and the novel chiral porphyrins and chiral metalloporphyrins themselves are disclosed. Metal complexes of the chiral porphyrins are prepared in high yields and shown to be active catalysts for highly enantioselective and diastereoselective cyclopropanation, aziridination, and epoxidation of alkenes under a practical one-pot protocol.

    摘要翻译: 公开了合成含杂原子的手性卟啉和手性金属卟啉以及新型手性卟啉和手性金属卟啉的新方法。 手性卟啉的金属络合物以高产率制备,并且显示为用于在实际一锅法下高度对映选择性和非对映选择性环丙烷化,氮丙啶化和烯烃环氧化的活性催化剂。

    Alkene Aziridination
    9.
    发明申请
    Alkene Aziridination 审中-公开
    阿尔卡尼Aziridination

    公开(公告)号:US20120077990A1

    公开(公告)日:2012-03-29

    申请号:US13202804

    申请日:2010-02-24

    申请人: X. Peter Zhang

    发明人: X. Peter Zhang

    CPC分类号: C07D203/24

    摘要: A process for the asymmetric aziridination of an alkene comprising treating the alkene with a sulfonyl azide, preferably trichloroethoxysulfonyl azide, in the presence of a cobalt(II) porphyrin.

    摘要翻译: 一种烯烃的不对称叠氮化方法,包括在钴(II)卟啉存在下用磺酰叠氮化物,优选三氯乙氧基磺酰基叠氮化物处理烯烃。

    Intramolecular C-H amination with sulfonyl azides
    10.
    发明授权
    Intramolecular C-H amination with sulfonyl azides 失效
    用磺酰叠氮化物分子内C-H胺化

    公开(公告)号:US07956193B2

    公开(公告)日:2011-06-07

    申请号:US12151182

    申请日:2008-05-05

    摘要: Cobalt (II) complexes of porphyrins are effective catalysts for intramolecular nitrene insertion of C—H bonds with arylsulfonyl azides. The cobalt-catalyzed process can proceed efficiently under mild and neutral conditions in low catalyst loading without the need of other reagents or additives, generating nitrogen gas as the only byproduct. Using the simple tetraphenylporphyrin (TPP) as the ligand, the cobalt-catalyzed intramolecular amidation can be applied to primary, secondary, and tertiary C—H bonds and suitable for a broad range of arylsulfonyl azides, leading to the syntheses of various benzosultam derivatives in excellent yields

    摘要翻译: 卟啉的钴(II)络合物是与芳基磺酰基叠氮基分子内插入C-H键的有效催化剂。 钴催化的方法可以在低催化剂负载的温和和中性条件下有效进行,而不需要其它试剂或添加剂,产生氮气作为唯一的副产物。 使用简单的四苯基卟啉(TPP)作为配体,钴催化的分子内酰胺化可以应用于一级,二级和三级C-H键,适用于宽范围的芳基磺酰基叠氮化物,导致各种苯并磺酰胺衍生物的合成 优良的产量