A novel highly selective Ag-catalyzed intermolecular amination of fluoroarenes has been developed. This transformation starts from readily available 4-carbonyl fluorobenzene and NaN3 or other nitrogen-source, via amination followed by C–F bond cleavage, thus affording the desired 4-carbonyl arylamine products under mild conditions. The reaction is accelerated using a small amount of water. This pathway
Potassium 2,2,5,7,8-Pentamethylchroman-6-oxide: A Rationally Designed Base for Pd-Catalysed Amination
作者:Ka Hou Hoi、Michael G. Organ
DOI:10.1002/chem.201103284
日期:2012.1.16
This base is just right! A new base, potassium 2,2,5,7,8‐pentamethylchroman‐6‐oxide, for Pd‐catalysed amination has been rationallydesigned that has sufficient basicity to efficiently deprotonate the intermediate aryl palladium ammonium complex, leading to far better rates than obtained with carbonate, which is known to be very mild. At the same time, this new base possesses minimal nucleophilicity
Ruthenium-Catalyzed Remote Electronic Activation of Aromatic CF Bonds
作者:Andrew J. A. Watson、Benjamin N. Atkinson、Aoife C. Maxwell、Jonathan M. J. Williams
DOI:10.1002/adsc.201200879
日期:2013.3.11
The tandem isomerization and nucleophilic aromatic substitution of allylic fluoro‐substituted benzylic alcohols is described for the first time. In the presence of the ruthenium complex Ru(PPh3)3(CO)(H)2, 1‐(4‐fluorophenyl)prop‐2‐en‐1‐ol is converted into the corresponding para‐amino ketone or para‐phenolic substituted ketone.
[DE] VINYL-, METHACRYLOYL- ODER ACRYLOLYL-GRUPPEN ENTHALTENDE STRAHLUNGSHÄRTBARE 1,3,5-TRIAZINCARBAMATE UND -HARNSTOFFE<br/>[EN] RADIATION CURABLE 1,3,5-TRIAZINE CARBAMATES AND 1,3,5-TRIAZINE UREAS CONTAINING VINYL GROUPS, METHACRYLOYL GROUPS, OR ACRYLOYL GROUPS<br/>[FR] 1,3,5-TRIAZINECARBAMATES ET 1,3,5-TRIAZINE-UREES DURCISSABLES PAR RAYONNEMENT, RENFERMANT DES GROUPES VINYLE, METHACRYLOYLE OU ACRYLOLYLE
申请人:BASF AG
公开号:WO2005103016A1
公开(公告)日:2005-11-03
Strahlungshärtbare 1,3,5-Triazincarbamate und -harnstoffe, Verfahren zu deren Herstellung und deren Verwendung.