A very high-yielding reaction of bis(o-nitrophenyl) carbonate with aliphatic amines under mild conditions has been developed. The resulting o-nitrophenyl carbamates were characterized by IR, H-1-NMR, C-13-NMR, and elemental analysis.
[EN] HIGHLY CHEMOSELECTIVE REACTIONS IN PRESENCE OF AROMATIC AMINO GROUPS<br/>[FR] RÉACTIONS HAUTEMENT CHIMIOSÉLECTIVES EN PRÉSENCE DE GROUPES AROMATIQUES AMINÉS
申请人:NEON LABORATORIES LTD
公开号:WO2017175238A1
公开(公告)日:2017-10-12
: The invention discloses a novel process for highly chemoselective reactions of substituted anilines without any detectable reaction at aromatic amino group. The invention also relates to a novel process for preparation of neostigmine methylsulphate via chemoselective reaction of 3-amionphenol and aryl dimethylcarbamates.
A very high-yielding reaction of bis(o-nitrophenyl) carbonate with aliphatic amines under mild conditions has been developed. The resulting o-nitrophenyl carbamates were characterized by IR, H-1-NMR, C-13-NMR, and elemental analysis.