Nano rod-shaped and reusable basic Al2O3 catalyst for N-formylation of amines under solvent-free conditions: A novel, practical and convenient ‘NOSE’ approach
[EN] 1,4-DISUBSTITUTED PIPERIDINE DERIVATIVES AND THEIR USE AS 11-BETAHSD1 INHIBITORS<br/>[FR] DERIVES DE PIPERIDINE 1,4 DISUBSTITUEE ET LEUR UTILISATION EN TANT QU'INHIBITEURS DE 11-BETAHSD1
申请人:ASTRAZENECA AB
公开号:WO2004033427A1
公开(公告)日:2004-04-22
The use of a compound of formula (I) in the manufacture of a medicament for use in the inhibition of 11βHSD1 is described.
使用式(I)的化合物制造用于抑制11βHSD1的药物。
First Electrophilic Substitutions of 3-Substituted Indoles with Diethoxycarbenium Tetrafluoroborate: Functionalized Indole Derivatives
作者:Ulf Pindur、Camran Flo
DOI:10.1002/ardp.19903230205
日期:——
The indoles 2a‐2c react with diethoxycarbeniumtetrafluoroborate (1) to furnish the indolecarbaldehydes 3a‐3d. In the thermodynamically controlled reaction of 3‐methylindole (2a) with 1 the tris(indolyl)methane 4 and diskatole (5), are formed in addition. The limitations of these reactions are discussed and evidence is presented for a C‐3‐ipso‐attack and a Wagner‐Meerwein rearrangement, respectively
Molecularly Defined Manganese Catalyst for Low-Temperature Hydrogenation of Carbon Monoxide to Methanol
作者:Pavel Ryabchuk、Kenta Stier、Kathrin Junge、Marek P. Checinski、Matthias Beller
DOI:10.1021/jacs.9b08990
日期:2019.10.23
Methanol synthesis from syngas (CO/H2 mixtures) is one of the largest manmade chemical processes with annual production reaching 100 million tons. The current industrial method proceeds at high temperatures (200-300°C) and pressures (50-100 atm) using a copper-zinc-based heterogeneous catalyst. In contrast, here we report a molecularly-defined manganese catalyst that allows for lowtemperature/low
Electrochemical Dearomative 2,3-Difunctionalization of Indoles
作者:Ju Wu、Yingchao Dou、Régis Guillot、Cyrille Kouklovsky、Guillaume Vincent
DOI:10.1021/jacs.8b13371
日期:2019.2.20
oxidative dearomatization of indoles leading to 2,3-dialkoxy or 2,3-diazido indolines under undivided conditions at a constant current. This operationally simple electro-oxidative procedure avoids the use of an external oxidant and displays excellent functional group compatibility. The formation of the two C-O or C-N bonds is believed to arise from the oxidation of the indoles into radical cation intermediates
我们报告了使用电化学对吲哚进行直接氧化脱芳构化,在恒定电流下在未分开的条件下产生 2,3-二烷氧基或 2,3-二叠氮二氢吲哚。这种操作简单的电氧化程序避免了使用外部氧化剂并显示出优异的官能团兼容性。两个 CO 或 CN 键的形成被认为是由吲哚氧化成自由基阳离子中间体引起的。
Direct Oxidative Coupling of<i>N</i>-Acetyl Indoles and Phenols for the Synthesis of Benzofuroindolines Related to Phalarine
作者:Terry Tomakinian、Régis Guillot、Cyrille Kouklovsky、Guillaume Vincent
DOI:10.1002/anie.201404055
日期:2014.10.27
by the biogenetic synthesis of benzofuroindoline‐containing natural products, we designed an oxidative coupling between phenol and N‐acetyl indoles. This straightforward and direct radical process, mediated by 2,3‐dichloro‐5,6‐dicyano‐1,4‐benzoquinone and FeCl3 allowed the regioselective synthesis of benzofuro[3,2‐b]indolines, whose structure is found in the natural product phalarine.