3-Amino-pyrazolo[3,4-d]pyrimidines as p38α kinase inhibitors: Design and development to a highly selective lead
摘要:
Learnings from previous Roche p38-selective inhibitors were applied to a new fragment hit, which was optimized to a potent, exquisitely selective preclinical lead with a good pharmacokinetic profile. (C) 2011 Elsevier Ltd. All rights reserved.
Subsupercritical Water Generated by Inductive Heating Inside Flow Reactors Facilitates the Claisen Rearrangement
作者:Andreas Kirschning、Mona Oltmanns
DOI:10.1055/s-0040-1705945
日期:2020.12
O-allylated phenols, including fluorine-modified phenols, is facilitated in aqueous media at high temperatures and pressures under flow conditions, as opposed to organic solvents. The O-allylation of phenols can be coupled with the Claisen rearrangement in an integrated flow system. Publication History Received: 14 August 2020 Accepted after revision: 16 September 2020 Publication Date: 27 October 2020
Mechanistic Insights into the <i>ortho</i>-Defluorination-Hydroxylation of 2-Halophenolates Promoted by a Bis(μ-oxo)dicopper(III) Complex
作者:Pau Besalú-Sala、Carla Magallón、Miquel Costas、Anna Company、Josep M. Luis
DOI:10.1021/acs.inorgchem.0c02246
日期:2020.12.7
. Albeit it is known that such reactivity is promoted by an electrophilic attack of a [Cu2O2]2+ core over the arene ring, the crucial details of the mechanism that explain the chemo- and regioselectivity of the reaction remain unknown, and it has not being determined either if CuII2(η2:η2-O2) or CuIII2(μ-O)2 species are responsible for the initial attack on the arene. Herein, we present a combined
CF键是最惰性的功能之一。然而,一些物[Cu 2 Ò 2 ] 2+物种能够脱氟-羟基化邻-fluorophenolates在比其它化学选择性的方式邻-halophenolates。尽管已知这种反应性是通过[Cu 2 O 2 ] 2+核对芳烃环的亲电攻击而促进的,但解释该反应的化学和区域选择性的机理的关键细节仍然未知,并且还没有被如果任一确定的Cu II 2(η 2:η 2 -O 2)或CuIII 2(μ-O)2物种负责对芳烃的初始攻击。本文中,我们提出了一项理论和实验机制相结合的研究,以阐明[Cu 2(O)2(DBED)2 ] 2+络合物对2-卤代酚盐的邻位脱氟羟基化反应的化学选择性的起源(DBED = N,ñ ' -二叔-butylethylenediamine)。我们的结果表明,(侧向)过氧(P)和bis(μ-氧代)(O异构体在该机理中起关键作用,后者是反应性物质。此外,基于量子力学计算,我们能够使[Cu
[EN] PROCESS FOR PREPARING AN UNSATURATED CARBOXYLIC ACID SALT USING AN ARYLOXIDE<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UN SEL D'ACIDE CARBOXYLIQUE INSATURÉ À L'AIDE D'UN OXYDE D'ARYLE
申请人:BASF SE
公开号:WO2015173277A1
公开(公告)日:2015-11-19
Catalytic process for preparing an α,β-ethylenically unsaturated carboxylic acid salt, wherein an alkene and carbon dioxide are reacted in the presence of a carboxylation catalyst and in the presence of a specific aryloxide to obtain the α,β-ethylenically unsaturated carboxylic acid salt, the carboxylation catalyst being a transition metal complex. The process allows for efficient preparation of α,β-ethylenically unsaturated carboxylic acid derivatives from CO2 and an alkene.
[EN] PROCESS FOR PREPARING AN UNSATURATED CARBOXYLIC ACID SALT<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UN SEL D'ACIDE CARBOXYLIQUE INSATURÉ
申请人:BASF SE
公开号:WO2015173276A1
公开(公告)日:2015-11-19
Catalytic process for preparing an α,β-ethylenically unsaturated carboxylic acid salt, comprising reacting an alkene and carbon dioxide in the presence of a carboxylation catalyst and releasing the α,β-ethylenically unsaturated carboxylic acid salt with a base, the carboxylation catalyst being a transition metal complex, which comprises a structurally constrained bidentate P,X ligand, wherein X is selected from the group consisting of P, N, O, and carbene, the P and X atom are separated by 2 to 4 bridging atoms, and wherein the bridging atoms are part of at least one 5- to 7-membered cyclic substructure. A further catalytic processes for preparing α,β-ethylenically unsaturated carboxylic acid derivatives from CO2 and an alkene is provided.
Process for preparing an unsaturated carboxylic acid salt
申请人:BASF SE
公开号:US10011551B2
公开(公告)日:2018-07-03
Catalytic process for preparing an α,β-ethylenically unsaturated carboxylic acid salt, comprising reacting an alkene and carbon dioxide in the presence of a carboxylation catalyst and releasing the α,β-ethylenically unsaturated carboxylic acid salt with a base, the carboxylation catalyst being a transition metal complex, which comprises a structurally constrained bidentate P,X ligand, wherein X is selected from the group consisting of P, N, O, and carbene, the P and X atom are separated by 2 to 4 bridging atoms, and wherein the bridging atoms are part of at least one 5- to 7-membered cyclic substructure. A further catalytic processes for preparing α,βethylenically unsaturated carboxylic acid derivatives from CO2 and an alkene is provided.
制备α,β-乙烯基不饱和羧酸盐的催化工艺,包括在羧化催化剂存在下使烯和二氧化碳反应,并用碱释放α,β-乙烯基不饱和羧酸盐,羧化催化剂为过渡金属配合物、其中 X 选自 P、N、O 和碳烯组成的组,P 原子和 X 原子之间有 2 至 4 个桥原子隔开,且桥原子是至少一个 5 至 7 元环亚结构的一部分。本发明还提供了一种从二氧化碳和烯烃制备α,β乙烯基不饱和羧酸衍生物的催化工艺。