Nitroarylamines via the Vicarious Nucleophilic Substitution of Hydrogen: Amination, Alkylamination, and Arylamination of Nitroarenes with Sulfenamides
摘要:
A new reaction of sulfenamides with electrophilic arenes under basic conditions is described. The sigma adducts formed from nitroarenes and the anions of sulfenamides undergo elimination of thiol to produce the corresponding o- and/or p-nitroanilines. This reaction is analogous to the known alkylation and hydroxylation of nitroarenes via the vicarious nucleophilic substitution of hydrogen (VNS). The reaction gives access to a wide range of substituted nitroanilines, nitronaphthylamines, and aminoheterocycles. By means of the reaction with N-alkryl- and N-arylsulfenamides, it is possible to obtain N-alkylnitroanilines and nitrodiarylamines. By varying the structure of sulfenamide and the reaction conditions, particularly the nature and concentration of the base, it is possible to control the orientation of amination.
The present invention discloses compounds of Formula I:
wherein the variables in Formula I are defined as described herein. Also disclosed are pharmaceutical compositions containing such compounds and methods for using the compounds of Formula I in the prevention or treatment of HCV infection.
Studies on the Oxidative SNH Amination of aromatic nitro compounds
作者:Wilhelm Pritzkow、Frank Sebald
DOI:10.1002/prac.19943360618
日期:——
ANTIVIRAL TRIAZOLE DERIVATIVES
申请人:F.Hoffmann-La Roche AG
公开号:EP2948440A1
公开(公告)日:2015-12-02
US9511059B2
申请人:——
公开号:US9511059B2
公开(公告)日:2016-12-06
[EN] ANTIVIRAL TRIAZOLE DERIVATIVES<br/>[FR] DÉRIVÉS DE TRIAZOLE ANTIVIRAUX
申请人:HOFFMANN LA ROCHE
公开号:WO2014114573A1
公开(公告)日:2014-07-31
The present invention discloses compounds of Formula I: wherein the variables in Formula I are defined as described herein. Also disclosed are pharmaceutical compositions containing such compounds and methods for using the compounds of Formula I in the prevention or treatment of HCV infection.