An Effective [Fe<sup>III</sup>(TF<sub>4</sub>DMAP)Cl] Catalyst for C–H Bond Amination with Aryl and Alkyl Azides
作者:Yi-Dan Du、Zhen-Jiang Xu、Cong-Ying Zhou、Chi-Ming Che
DOI:10.1021/acs.orglett.8b03765
日期:2019.2.15
[FeIII(TF4DMAP)Cl] can efficiently catalyzeintermolecular sp3 C–Hamination using aryl azides and intramolecular sp3 C–Hamination of alkyl azides in moderate-to-high product yields. At catalyst loading down to 1 mol %, the reactions display high chemo- and regioselectivity with broad substrate scope and are effective for late-stage functionalization of complex natural/bioactive molecules.
[EN] SYNTHESIS OF ACYCLIC AND CYCLIC AMINES USING IRON-CATALYZED NITRENE GROUP TRANSFER<br/>[FR] SYNTHÈSE D'AMINES ACYCLIQUES ET CYCLIQUES AU MOYEN D'UN TRANSFERT DE GROUPE NITRÈNE CATALYSÉ PAR LE FER
申请人:HARVARD COLLEGE
公开号:WO2014134141A1
公开(公告)日:2014-09-04
The present invention provides novel synthetic methods for making acyclic secondary amines by reacting an azide with a compound bearing one or more C-H groups, catalyzed by a FeII-dipyrromethene complex. The acyclic secondary amines are thought to be formed through an intermolecular nitrene transfer. Also provided herein are methods of synthesizing protected (e.g., Boc- or Fmoc-protected) cyclic secondary amines (e.g., 5-, 6-, and 7- membered cyclic secondary amines) by reacting an azide that bears one or more C-H groups, catalyzed by a FeII-dipyrromethene complex. The protected cyclic secondary amines are thought to be formed through an intramolecular nitrene transfer and may be subsequently deprotected to yield cyclic secondary amines.
[EN] TLR-AGONIST-CONJUGATED ANTIBODY RECRUITING MOLECULES (TLR_ARMS)<br/>[FR] MOLÉCULES DE RECRUTEMENT D'ANTICORPS CONJUGUÉS À UN AGONISTE DE TLR)
申请人:UNIV YALE
公开号:WO2013166110A1
公开(公告)日:2013-11-07
The present invention relates to chimeric chemical compounds which are used to recruit antibodies to cancer cells, in particular, prostate cancer cells or metastasized prostate cancer cells. The compounds according to the present invention comprise an antibody binding terminus (ABT) moiety covalently bonded to a cell binding terminus (CBT) and Toll-like receptor agonist (TLR) through a linker and a multifunctional connector group or molecule.
作者:Ka-Pan Shing、Yungen Liu、Bei Cao、Xiao-Yong Chang、Tingjie You、Chi-Ming Che
DOI:10.1002/anie.201806059
日期:2018.9.10
selective amination of tertiary, benzylic, allylic, secondary, and primary C−H bonds with up to 95 % yield. 14 out of 17 substrates were cyclized selectively at C4 to give pyrrolidines. The regioselectivity at C4 or C5 could be tuned by modifying the reactivity of the C5–H bond. Mechanistic studies revealed a concerted or a fast re‐bound mechanism for the aminationreaction. The reaction has been applied
Iron–Phosphine Complex-Catalyzed Intramolecular C(sp<sup>3</sup>)–H Amination of Azides
作者:Siyu Liang、Xiaopeng Zhao、Tonghao Yang、Wei Yu
DOI:10.1021/acs.orglett.0c00308
日期:2020.3.6
Fe(II)-phosphine complex [Fe(dpbz)]Cl2 was demonstrated to be effective for the intramolecularC(sp3)-H amination of organic azides. This catalyst exhibited a high catalytic capacity for the transformations from α-azido amides to imidazolinones. Cyclization of simple aliphatic azides can be realized as well by using [Fe(dpbz)]Cl2 as the catalyst.