The present invention relates to a process for the synthesis of 2-aminobiphenylene and derivatives thereof by reacting a benzene diazonium salt with an aniline compound under basic reaction conditions.
Strongly Directing Substituents in the Radical Arylation of Substituted Benzenes
作者:Josefa Hofmann、Timothy Clark、Markus R. Heinrich
DOI:10.1021/acs.joc.6b01840
日期:2016.10.21
radical arylation reactions has grown rapidly in recent years, poor regioselectivities and the need to use a large excess of the radical-accepting arene have hindered their application to substituted benzenes. We now describe experimental and computational investigations into the substituent effects that lead to regioselective addition based on the recent discovery of anilines as outstanding substrates
[EN] FLUOROPHENYL SUBSTITUTED MUSCARINIC RECEPTOR LIGANDS WITH SELECTIVITY FOR M3 OVER M2<br/>[FR] LIGANDS DES RÉCEPTEURS MUSCARINIQUES À SUBSTITUTION FLUOROPHÉNYLE AYANT UNE SÉLECTIVITÉ POUR M3 SUR M2
申请人:UNIV FRIEDRICH ALEXANDER ER
公开号:WO2019110521A1
公开(公告)日:2019-06-13
The present invention relates to fluorophenyl substituted muscarinic receptor ligands with selectivity for M3 over M2 and to the use of these compounds in the treatment of various diseases such as asthma, chronic obstructive pulmonary disease (COPD), bronchopulmonary dysplasia (BPD) and urinary incontinence.
Radical Arylation of Anilines and Pyrroles via Aryldiazotates
作者:Josefa Hofmann、Eva Gans、Timothy Clark、Markus R. Heinrich
DOI:10.1002/chem.201701429
日期:2017.7.18
The radical arylation of anilines and pyrroles can be achieved under transition-metal- and catalyst-free conditions by using aryldiazotates in strongly alkaline aqueous solutions. The aryldiazotates act as protected diazonium ions, which do not undergo azo coupling with electron-rich aromatic substrates, but can still serve as an aryl radical source at slightly elevated temperatures. Based on an improved
The Gomberg-Bachmann Reaction for the Arylation of Anilines with Aryl Diazotates
作者:Gerald Pratsch、Tina Wallaschkowski、Markus R. Heinrich
DOI:10.1002/chem.201200430
日期:2012.9.10
Simply aqueous sodium hydroxide is sufficient to exclude ionic side reactions and to prepare 2‐aminobiphenyls from aryldiazotates and anilines through a new variant of the Gomberg–Bachmannreaction (see scheme). The metal‐free reaction under basic conditions allows to exploit the highly radical‐stabilizing effect of the aniline's free amino function for the first time, which leads to a so far unreached