Mesoporous poly-melamine-formaldehyde stabilized palladium nanoparticle (Pd@mPMF) catalyzed mono and double carbonylation of aryl halides with amines
作者:Rostam Ali Molla、Md. Asif Iqubal、Kajari Ghosh、Anupam Singha Roy、Kamaluddin Kamaluddin、Sk. Manirul Islam
DOI:10.1039/c4ra07554d
日期:——
A new mesoporous polymer stabilized Pd nano (mPMF–Pd0) has been synthesized and well characterized. The catalytic performance of this complex has been tested for mono and double carbonylation of aryl halides with amines.
[EN] NOVEL APOPTOSIS SIGNAL-REGULATING KINASE 1 INHIBITORS<br/>[FR] NOUVEAUX INHIBITEURS DE KINASE 1 DE RÉGULATION DE SIGNAL D'APOPTOSE
申请人:MANKIND PHARMA LTD
公开号:WO2020261294A1
公开(公告)日:2020-12-30
The present invention relates to inhibitors of apoptosis signal-regulating kinase 1 ("ASK1"), a process for synthesis of the compounds of the present invention, composition comprising the compounds and use of the compounds for inhibition of ASK1.
Coupling of nucleophiles, vinyl compounds or CO with water, alcohols or amines to organic compounds
申请人:——
公开号:US20010037042A1
公开(公告)日:2001-11-01
Process for the coupling of
a) nucleophiles selected from the group alcohols, thioles, amines, metallised hydrocarbons, CH-acidic compounds and metal cyanides, or of
b) carbon monoxide mixed with water, alcohols, ammonia, primary or secondary amines, to organic compounds selected from the group of leaving-group-containing aromatics, hetero-aromatics with a C-bonded leaving group, aromatic or hetero-aromatic methyl compounds with a leaving group bonded to the methyl group, ethylenically unsaturated organic compounds with a C-bonded leaving group, or organic allyl compounds with a leaving group in allyl position, or
c) vinyl compounds with leaving-group-containing aromatics, whilst cleaving the leaving group in the presence of Pd complexes with monophospholine ligands as the catalyst, whereby variants b) and c) are carried out in the presence of an inorganic base or organic nitrogen base, the process being characterised in that the Pd complex contains secondary monophosphines with aliphatic, branched or cyclic substituents as ligands.
Brønsted Acid Cocatalysis in Copper(I)-Photocatalyzed α-Amino C–H Bond Functionalization
作者:Thomas P. Nicholls、Grace E. Constable、Johnathon C. Robertson、Michael G. Gardiner、Alex C. Bissember
DOI:10.1021/acscatal.5b02014
日期:2016.1.4
We have exploited a bis(1,10-phenanthroline)copper(I) visible light photocatalyst (VLP), [Cu(dap)2]+, to effect the direct α-C–H functionalization of amines. To our knowledge, this represents the first example of the oxidation of amines that are ultimately incorporated into synthetic targets by a copper(I) VLP. We have utilized this approach to rapidly prepare unprecedented octahydroisoquinolino[2
我们开发了一种双(1,10-菲咯啉)铜(I)可见光催化剂(VLP)[Cu(dap)2 ] +来实现胺的直接α-CH官能化。据我们所知,这是胺氧化的第一个例子,该胺最终被铜(I)VLP掺入合成靶中。我们已经利用这种方法快速制备了前所未有的八氢异喹啉[2,1- a ]吡咯并[3,4- c]喹啉框架并利用这一过程合成了天然产物麦角丙氨酸B的新型糖苷配基类似物。最重要的是,我们的研究表明,三氟乙酸(TFA)的存在对于介导推定的光激发铜(I )参与催化循环的物种。
Electrochemical Amidation: Benzoyl Hydrazine/Carbazate and Amine as Coupling Partners
作者:Tipu Alam、Amitava Rakshit、Hirendra Nath Dhara、Angshuman Palai、Bhisma K. Patel
DOI:10.1021/acs.orglett.2c02626
日期:2022.9.16
An electrochemical amidation of benzoyl hydrazine/carbazate and primary/secondary amine as coupling partners via concomitant cleavage and formation of C(sp2)–N bonds has been achieved. This methodology proceeds undermetal-free and exogenous oxidant-free conditions producing N2 and H2 as byproducts. Mechanistic studies reveal the in situ generations of both acyl and N-centered radicals from benzoyl
通过伴随的裂解和 C(sp 2 )-N 键的形成,实现了苯甲酰肼/咔巴酸酯和伯/仲胺作为偶联伙伴的电化学酰胺化。该方法在无金属和无外源氧化剂的条件下进行,产生 N 2和 H 2作为副产物。机理研究揭示了来自苯甲酰肼和胺的酰基和N中心自由基的原位生成。该协议的实用性通过大规模合成苯扎贝特(一种高脂血症药物)得到证明。