Manganese-catalysed benzylic C(sp3)–H amination for late-stage functionalization
作者:Joseph R. Clark、Kaibo Feng、Anasheh Sookezian、M. Christina White
DOI:10.1038/s41557-018-0020-0
日期:2018.6
intermolecular benzylic C–H amination of bioactive molecules and natural products that proceeds with unprecedented levels of reactivity and site selectivity. In the presence of a Brønsted or Lewis acid, the [MnIII(ClPc)]-catalysed C–H amination demonstrates unique tolerance for tertiary amine, pyridine and benzimidazole functionalities. Mechanistic studies suggest that C–H amination likely proceeds
C–H Amination via Electrophotocatalytic Ritter-type Reaction
作者:Tao Shen、Tristan H. Lambert
DOI:10.1021/jacs.1c03718
日期:2021.6.16
A method for C–H bond amination via an electrophotocatalytic Ritter-type reaction is described. The reaction is catalyzed by a trisaminocyclopropenium (TAC) ion in an electrochemical cell under irradiation. These conditions convert benzylic C–H bonds to acetamides without the use of a stoichiometric chemical oxidant. A range of functionality is shown to be compatible with this transformation, and several
Direct Methylation of Amines with Carbon Dioxide and Molecular Hydrogen using Supported Gold Catalysts
作者:Xian-Long Du、Gao Tang、Hong-Liang Bao、Zheng Jiang、Xin-Hua Zhong、Dang Sheng Su、Jian-Qiang Wang
DOI:10.1002/cssc.201500486
日期:2015.10
Furthermore, the catalyst is tolerant toward a variety of amines, which includes aromatic, aliphatic, secondary, and primary amines. Preliminary mechanistic studies suggest that the N‐alkyl formamide might be an intermediate in the N‐methylation of amine process. Moreover, through a one‐pot process, it is possible to convert primary amines, aldehydes, and CO2 into unsymmetrical tertiary amines with H2 as
胺与CO 2和H 2的N-甲基化是生物活性化合物和化学中间体合成中的重要步骤。据报道该甲基化反应的第一种非均相Au催化剂具有良好或优异的产率。基于表面Au原子的平均周转频率(TOF)为45 h -1,这是有报道的苯胺与CO 2和H 2甲基化的最高TOF值。此外,该催化剂对多种胺具有耐受性,包括芳族,脂族,仲和伯胺。初步的力学研究表明,N烷基甲酰胺可能是胺过程中甲基化的中间体。此外,通过一锅法,可以在Au催化剂存在下,以H 2为还原剂,将伯胺,醛和CO 2转化为不对称叔胺。
[EN] PIPERIDIN-1- YL-N-PYRYDI NE-3-YL-2-OXOACET AM IDE DERIVATIVES USEFUL FOR THE TREATMENT OF MTAP-DEFICIENT AND/OR MT A-ACCUMULATING CANCERS<br/>[FR] DÉRIVÉS DE PIPÉRIDIN-1-YL-N-PYRYDINE-3-YL-2-OXO-ACÉTAMIDE UTILES POUR LE TRAITEMENT DE CANCERS DÉFICIENTS EN MTAP ET/OU ACCUMULANT MTA
申请人:TANGO THERAPEUTICS INC
公开号:WO2022026892A1
公开(公告)日:2022-02-03
Compounds are provided according to Formula (I) and pharmaceutically acceptable salts thereof, and pharmaceutical compositions thereof; wherein R1, R2, R3, R4, R6, R7, R8 and n are as defined herein. Compounds of the present invention are contemplated useful for the prevention and treatment of a variety of conditions.
Piperazine compounds of the formula I
in which the variables are defined according to the description, their agriculturally suitable salts, processes and intermediates for preparing the piperazine compounds of the formula I, compositions comprising them and their use as herbicides, i.e. for controlling harmful plants, and also a method for controlling unwanted vegetation which comprises allowing a herbicidally effective amount of at least one piperazine compound of the formula I to act on plants, their seed and/or their habitat.