An integrated process for preparing &agr;-(2,4-disulfophenyl)-N-tert-butylnitrone and its salts is disclosed in which N-tert-butylhydroxylamine acid addition salt is incompletely neutralised so as to leave catalytic amounts of acid and the neutralisation product is condensed with an appropriate aldehyde.
本发明公开了一种制备α-(2,4-二磺基苯基)-N-叔丁基硝基自由基及其盐的集成过程,其中N-叔丁基
羟胺酸盐的加酸反应未完全中和,以留下催化量的酸,中和产物与适当的醛缩合。