Solvent- and transition metal-free amide synthesis from phenyl esters and aryl amines
作者:Sergey A. Rzhevskiy、Alexandra A. Ageshina、Gleb A. Chesnokov、Pavel S. Gribanov、Maxim A. Topchiy、Mikhail S. Nechaev、Andrey F. Asachenko
DOI:10.1039/c8ra10040c
日期:——
A general, economical, and environmentally friendly method of amide synthesis from phenyl esters and arylamines was developed. This new method has significant advantages compared to previously reported palladium-catalyzed approaches. The reaction is performed transition metal- and solvent-free, using a cheap and environmentally benign base, NaH. This approach enabled us to obtain target amides in
开发了一种由苯酯和芳基胺合成酰胺的通用、经济和环保的方法。与先前报道的钯催化方法相比,这种新方法具有显着优势。该反应在无过渡金属和无溶剂的情况下使用廉价且对环境无害的碱 NaH 进行。这种方法使我们能够以高产率和高原子经济性获得目标酰胺。
Transition-Metal-Free Poly(thiazolium) Iodide/1,8-Diazabicyclo[5.4.0]undec-7-ene/Phenazine-Catalyzed Esterification of Aldehydes with Alcohols
作者:Supill Chun、Young Keun Chung
DOI:10.1021/acs.orglett.7b01617
日期:2017.7.21
Poly(3,4-dimethyl-5-vinylthiazolium) iodide was used as a polymer precatalyst in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) and phenazine for the oxidative esterification of aldehydes with alcohols. Selective functionalization of OH groups was achieved in the presence of NH2 groups. The poly(thiazolium) iodide/DBU/phenazine system exhibited excellent catalytic activity and could be reused
Acetyl nitrate mediated conversion of methyl ketones to diverse carboxylic acid derivatives
作者:Joseph N. Capilato、Peter J. Pellegrinelli、Josephine Bernard、Logan Schnorbus、Shane Philippi、Joseph Mattiucci、Erik P. Hoy、Lark J. Perez
DOI:10.1039/d1ob00786f
日期:——
The development of a novel acetyl nitrate mediated oxidative conversion of methyl ketones to carboxylic acid derivatives is described. By analogy to the haloform reaction and supported by experimental and computational investigation we propose a mechanism for this transformation.
[EN] FUSED TRI AND TETRA-CYCLIC PYRAZOLE KINASE INHIBITORS<br/>[FR] INHIBITEURS DE PYRAZOLE KINASE FUSIONNEE TRICYCLIQUE ET TETRACYCLIQUE
申请人:ABBOTT LAB
公开号:WO2004080973A1
公开(公告)日:2004-09-23
Compounds having the formula (I) (I), are useful for inhibiting protein kinases. Also disclosed are methods of making the compounds, compositions containing the compounds, and methods of treatment using the compounds.
N-Heterocyclic carbene catalysed aerobic oxidation of aromatic aldehydes to aryl esters using boronic acids
作者:Panjab Arde、B. T. Ramanjaneyulu、Virsinha Reddy、Apurv Saxena、R. Vijaya Anand
DOI:10.1039/c1ob06566a
日期:——
The organocatalytic behavior of N-heterocyclic carbenes in the aerobicoxidation of aromatic aldehydes to esters with boronic acids has been explored. This transition metal-free protocol allows access to a wide variety of aromatic esters in good to excellent yields under mild reaction conditions.