Atom-Economical and Tandem Conversion of Nitriles to <i>N</i>-Methylated Amides Using Methanol and Water
作者:Bhaskar Paul、Milan Maji、Sabuj Kundu
DOI:10.1021/acscatal.9b03916
日期:2019.11.1
A cobalt complex catalyzed tandem conversion of nitrile to N-methylated amide is described using a methanol and water mixture. Using this protocol, several nitriles were directly and efficiently converted to the desired N-methylated amides. Kinetic experiments using H2O18 and CD3OD suggested that water and methanol were the source of the oxygen atom and methyl group, respectively, in the final N-methylated
描述了使用甲醇和水的混合物的钴络合物催化的腈串联转化为N-甲基化酰胺。使用该方案,将几个腈直接有效地转化为所需的N-甲基化酰胺。使用H 2 O 18和CD 3 OD进行的动力学实验表明,水和甲醇分别是最终N中氧原子和甲基的来源。-甲基化酰胺。重要的是,控制实验实现了活性Co(I)–H物种参与该转化的过程。动力学同位素效应(KIE)研究表明,甲醇C–H键的活化是动力学上重要的一步。哈米特图证实了电子不足的腈的反应更快。此外,计算研究支持了从腈形成N-甲基化酰胺的可能途径。
Ruthenium-Catalyzed Synthesis of N-Methylated Amides using Methanol
作者:Bhaskar Paul、Dibyajyoti Panja、Sabuj Kundu
DOI:10.1021/acs.orglett.9b01925
日期:2019.8.2
An efficient synthesis of N-methylated amides using methanol in the presence of a ruthenium(II) catalyst is realized. Notably, applying this process, tandem C-methylation and N-methylation were achieved to synthesize α-methyl N-methylated amides. In addition, several kinetic studies and control experiments with the plausible intermediates were performed to understand this novel protocol. Furthermore
[EN] METALLOENZYME INHIBITOR COMPOUNDS<br/>[FR] COMPOSÉS INHIBITEURS DE MÉTALLOENZYMES
申请人:VIAMET PHARMACEUTICALS INC
公开号:WO2013090210A1
公开(公告)日:2013-06-20
The instant invention describes compounds having metalloenzyme modulating activity, and methods of treating diseases, disorders or symptoms thereof mediated by such metalloenzymes.
[EN] NEW ANTIFIBRINOLYTIC COMPOUNDS<br/>[FR] NOUVEAUX COMPOSÉS ANTIFIBRINOLYTIQUES
申请人:PROYECTO BIOMEDICINA CIMA SL
公开号:WO2014012964A1
公开(公告)日:2014-01-23
It relates to spirocyclic compounds of formula (I),or pharmaceutically or veterinary acceptable salts thereof, or any stereoisomers either of the compounds of formula (I) or of their pharmaceutically or veterinary acceptable salts, wherein A and B form a spirocyclic ring system wherein the spiro atom connecting A and B is a carbonatom and wherein A is a known 3- to 8-membered carbocyclic or heterocyclic monocyclic ring or a known 6- to 18-membered carbocyclic or heterocyclic polycyclic ring system; B is a known 4- to 7-membered carbocyclic or heterocyclic monocyclic ring; C is phenyl or a known 5- to 6-membered heteroaromatic ring; and R1-R7 are as defined herein. It also relates to a process for their preparation, as well as to the intermediates used in this process; to pharmaceutical or veterinary compositions containing them, and to their use in medicine, in particular as antifibrinolytic and antihemorragic agents.
The present invention relates to new phenylic derivatives exhibiting a good affinity for certain sub-types of cannabinoid receptors, in particular the CB2 receptors. These derivatives are of particular interest in a method for treating pathological conditions and diseases in which one or more cannabinoid receptors are involved. The invention also relates to pharmaceutical compositions containing said new phenylic derivatives and to methods for the preparation and use thereof.