
%0 Journal Article
%A Rosevear, J 
%A Wilshire, JFK 
%T The preparation of sodium 4-Amino-3-nitro-benzenesulfonate and some related compounds
%J Australian Journal of Chemistry
%D 1982/08/01
%V 35
%N 8
%P 1727-1732
%K 
%R https://doi.org/10.1071/CH9821727
%U https://www.publish.csiro.au/paper/CH9821727 
%X The sodium salt of 4-amino-3-nitrobenzenesulfonic acid (O-nitroaniline-p-sulfonic acid) has been prepared by the action of dilute sodium hydroxide solution on ethyl [(4-chlorosulfonyl-2-nitro)- phenyllcarbamate. Central to this synthesis is the finding that the N-ethoxycarbonyl group, when located ortho to a nitro group (but not to a bromo group), is readily removed by dilute sodium hydroxide solution. 
