Copper-catalysed intramolecular O-arylation of aryl chlorides and bromides: a straightforward approach to benzo[d]oxazoles in water
摘要:
A general, efficient and more sustainable protocol for the copper-catalysed intramolecular O-arylation of o'- haloanilides leading to the benzo[d]oxazole core is reported. Remarkably, the optimised conditions allowed for the use of inexpensive and easily available aryl chlorides as arylating agents. Moreover, all reactions were carried out employing exclusively water as the solvent, rendering the methodology presented herein highly valuable from both environmental and economic points of view. (c) 2007 Elsevier Ltd. All rights reserved.
Potassium Carbonate Promoted C–N Coupling Reaction between Benzamides and Aryl Iodides
作者:Songlin Zhang、Fei Huang、San Wu、Weiye Hu
DOI:10.1055/s-0036-1591843
日期:2018.3
benzamides promoted by potassium carbonate in the presence of DMEDA was developed. The reaction was carried out without addition of any transition-metal catalyst to afford a variety of N-arylated products in moderate to good yields (up to 97%). A practical and efficient method for N-arylation of benzamides promoted by potassium carbonate in the presence of DMEDA was developed. The reaction was carried out
[EN] HETEROAROMATIC CARBOXAMIDE DERIVATIVES AND THEIR USE AS INHIBITORS OF THE ENZYME IKK-2<br/>[FR] DERIVES DE CARBOXAMIDES HETEROAROMATIQUES ET LEUR UTILISATION COMME INHIBITEURS DE L'ENZYME IKK-2
申请人:ASTRAZENECA AB
公开号:WO2001058890A1
公开(公告)日:2001-08-16
The invention relates to heteroaromatic carboxamides of formula (I), wherein A, R1, R2 and X are as defined in the specification, processes and intermediates used in their preparation, pharmaceutical compositions containing them and their use in therapy.