由于酰胺具有无数的应用,腈的水合已成为最优选的原子效率合成方法之一。由于动力学缓慢,这种策略需要一些有效的催化剂。在此,我们发现氢氧化胆碱是一种环境友好、不含金属且价格低廉的催化剂,可用于芳族和杂芳族腈在水中/水中的水合,并具有优异的收率。所有反应都在温和/中等条件下进行,催化剂与反应物或中间体之间的氢键促进了这些反应。密度泛函理论 (DFT) 研究被用来提出似是而非的反应机制,这进一步证实了使用定量19的动力学测量F NMR 光谱,从而揭示了 H 键介导催化的存在,其降低了活化能垒,甚至低于之前关于使用 H 2 SO 4或 Ru(OH) x /Al 2 O 3作为催化剂的报道。这项工作为腈的有效水合提供了一种“水中/水中”反应策略,并将为酰胺的商业合成新途径铺平道路。
[EN] AMIDOIMIDAZOPYRIDAZINES AS MKNK-1 KINASE INHIBITORS<br/>[FR] AMIDOIMIDAZOPYRIDAZINES À TITRE D'INHIBITEURS DE KINASES MKNK-1
申请人:BAYER PHARMA AG
公开号:WO2014118135A1
公开(公告)日:2014-08-07
The present invention relates to amido-substituted imidazopyridazine compounds of general formula (I) : in which A, R1, R2, R3, R4 and n are as defined in the claims, to methods of preparing said compounds, to intermediate compounds useful for preparing said compounds, to pharmaceutical compositions and combinations comprising said compounds and to the use of said compounds for manufacturing a pharmaceutical composition for the treatment or prophylaxis of a disease, in particular of a hyper- proliferative and/or angiogenesis disorder, as a sole agent or in combination with other active ingredients.
The invention provides antimicrobial agents and methods of using the agents for sterilization, sanitation, antisepsis, disinfection, and treatment of infections in mammals.
这项发明提供了抗菌剂和使用这些剂进行哺乳动物的消毒、卫生、防腐、消毒和治疗感染的方法。
[EN] CHEMICAL COMPOUNDS<br/>[FR] DERIVES DE QUINAZOLINE POUR LE TRAITEMENT DU CANCER
申请人:ASTRAZENECA AB
公开号:WO2004094410A1
公开(公告)日:2004-11-04
Quinazoline derivatives of formula (I); for use in the treatment of proliferative diseases such as cancer and in the preparation of medicaments for use in the treatment of proliferative diseases, and to processes for their preparation, as well as pharmaceutical compositions containing them as active ingredient.
Palladium-Catalyzed Regioselective C–H Alkenylation of Arylacetamides via Distal Weakly Coordinating Primary Amides as Directing Groups
作者:Yogesh Jaiswal、Yogesh Kumar、Amit Kumar
DOI:10.1021/acs.joc.7b02618
日期:2018.2.2
Herein we disclose the efficient Pd(II)-catalyzed and regioselective ortho C–Halkenylation of arylacetamide derivatives, viz. weakly coordinating aliphatic primary amides. This protocol utilizes ubiquitous free primary amides as the directing group and circumvents two troublesome steps of installation and removal of an external auxiliary. This strategy directly enables the incorporation of a synthetically
An efficient and regioselective palladium(II)-catalyzed primary acetamide assisted ortho arylation of arylacetamide has been discovered. This is the first report where functionalizable primary acetamide (−CH2CONH2) is used as a directing group for C(sp2)–H activation/cross-coupling reactions, circumventing the extra steps of installation and subsequent removal of the directing groups. The synthetic