Vinylogous nucleophilic catalysis. Tertiary amine promoted hydrolysis of 1-alkene-1-sulfonyl chlorides
作者:James Frederick King、John Henry Hillhouse、Stanisław Skonieczny
DOI:10.1139/v84-339
日期:1984.10.1
We present evidence that the reactions of ethenesulfonyl chloride (1) and trans-1-propene-1-sulfonyl chloride (3) with water in the presence of pyridine, trimethylamine, and a number of other tertiary amines proceed primarily by way of an initial vinylogous substitution reaction to form the cationic sulfene, , which subsequently reacts with water either by addition (and deprotonation) to form the betaine
Frustrated Lewis Pair Catalyzed Hydrogenation of Amides: Halides as Active Lewis Base in the Metal-Free Hydrogen Activation
作者:Nikolai A. Sitte、Markus Bursch、Stefan Grimme、Jan Paradies
DOI:10.1021/jacs.8b12997
日期:2019.1.9
reductant is introduced. The reaction proceeds via the hydrogen splitting by B(2,6-F2-C6H3)3 in combination with chloride as the Lewisbase. Density functional theory calculations support the unprecedented role of halides as active Lewisbase components in the frustratedLewispair mediated hydrogen activation. The reaction displays broad substrate scope for tertiary benzoic acid amides and α-branched carboxamides
Magnesium-Catalyzed Mild Reduction of Tertiary and Secondary Amides to Amines
作者:Nicole L. Lampland、Megan Hovey、Debabrata Mukherjee、Aaron D. Sadow
DOI:10.1021/acscatal.5b01038
日期:2015.7.2
information on catalyst activation in hand, tertiary amides are selectively reduced to amines in good yield when catalytic amounts of ToMMgMe are added to a mixture of amide and excess HBpin. In addition, secondary amides are reduced in the presence of 10 mol % ToMMgMe and 4 equiv of HBpin. Functional groups such as cyano, nitro, and azo remain intact under the mild reaction conditions. In addition, kinetic experiments
报道了酰胺催化加氢硼化以将其脱氧为胺的第一个实例。该转化采用了富含地球的镁基催化剂。叔酰胺和仲酰胺在频哪醇硼烷(HBpin)和催化量的To M MgMe(To M =三(4,4-二甲基-2-恶唑啉基)苯基硼酸酯)存在下于室温还原为胺。如催化实验中底物和HBpin的浓度和添加顺序的影响所揭示的,在该系统中催化剂的引发和形成是复杂的。由To M MgMe和HBpin形成的To M MgH 2 Bpin被排除为可能的催化相关物种,因为它与N发生了反应,N-二甲基苯甲酰胺,分别通过C–N和C–C键裂解途径提供Me 2 NBpin和PhBpin。在该反应中,仅以低收率形成催化产物苄基二甲基胺。或者,To M MgMe与N,N-二甲基苯甲酰胺的反应在24小时内缓慢分解为To M MgMe,并且该相互作用也被排除为催化相关步骤。总之,这些数据表明,To M MgMe的催化活化需要HBpin和酰胺,以及To
Aluminium complex as an efficient catalyst for the chemo-selective reduction of amides to amines
作者:Suman Das、Himadri Karmakar、Jayeeta Bhattacharjee、Tarun K. Panda
DOI:10.1039/c9dt01806a
日期:——
(HBpin) to afford the corresponding amines in high yields using aluminiumcomplexes [κ2-Ph2P(X)NC9H6N}Al(Me)2] [X = S (2a), Se (2b)] as pre-catalysts at room temperature. The aluminiumcomplexes were prepared from the reaction of [Ph2P(X)NC9H6N] [X = S (1a), Se (1b)] and trimethylaluminium in toluene. The solid-state structure of complex 2b is established. Tertiary amides with a wide array of electron-withdrawing
5-MEMBERED HETEROCYCLE FUSED WITH [3,4-D]PYRIDAZINONE, AND MANUFACTURING METHOD, PHARMACEUTICAL COMPOSITION, AND APPLICATION THEREOF
申请人:Shanghai Institute of Materia Medica,
Chinese Academy of Sciences
公开号:EP3470415A1
公开(公告)日:2019-04-17
The present invention provides a compound comprising a 5-membered heterocycle fused with a pyridazinone, wherein the compound is used as an FGFR kinase inhibitor, and a manufacturing method and application thereof. The invention specifically provides a compound as represented by formula (I). Various radicals are as defined in the specification. The compound provided by the invention effectively inhibits an activity of an FGFR kinase, and can be used to manufacture a pharmaceutical product for treating a disease related to the activity of the FGFR kinase.