Ni/g‐C
<sub>3</sub>
N
<sub>4</sub>
Photocatalysis: Aerobic Oxidative Coupling Reaction Leading to Amidation of Aldehydes with Amines and C−N, C−O, and C−C Cross‐Coupling Reaction
作者:Zahra Akrami、Mona Hosseini‐Sarvari
DOI:10.1002/ejoc.202200429
日期:2022.6.27
Graphitic carbonnitrides bonded with nickel can induce mild aerobicoxidativecoupling reactions. Amidation of aldehydes with amines was reported, as well as the cross-coupling of C−N, C−O, and C−C aryl halides with amines, alcohols, and carboxylic acid.
Härtbare Mischungen zur Herstellung von Epoxidnetzwerken, Verfahren zu deren Herstellung und Verwendung
申请人:BAYER AG
公开号:EP0475023A2
公开(公告)日:1992-03-18
Die Erfindung betrifft härtbare Mischungen zur Herstellung von Epoxidnetzwerken sehr hoher Schlagzähigkeit, ein Verfahren zu deren Herstellung und Verwendung als polymere Werkstoffe, Beschichtungs-, Überzugsmittel, Klebstoffe oder Elektroisolierstoffe.
In order to better understand the reaction mechanism and to obtain optimal conditions, the Ph3P-I-2/Et3N mediated aryl esterification reaction was thoroughly investigated. Using a specific reagent addition sequence, the reaction proceeds remarkably well especially with acidic substrates. P-31 NMR studies revealed that the formation of an aryloxyphosphonium salt is crucial in governing the reaction path toward the formation of phenolic esters. (C) 2016 Elsevier Ltd. All rights reserved.
Vogel,A.I., Text-Book of Practical Organic Chemistry, 1. Aufl. <London 1948> S. 653, 656, 3. Aufl. <London 1956> S. 682, 685