SODIUM 2-DIMETHYLAMINO-2-PARAHYDROXYPHENYL ACETATE, PROCESS FOR ITS PREPARATION AND ITS APPLICATION TO THE MANUFACTURE OF PARAHYDROXYBENZYL CYANIDE

摘要

The invention relates to crystallized 2-dimethylamino-2-parahydroxyphenyl sodium acetate, anhydrous or with 2 molecules of water. The process for preparation thereof comprises heating parahydroxy mandelic acid in dimethylformamide in the presence of a catalytic quantity of a strong acid, such reaction being followed by a sodium hydroxide neutralization. Said product is applied to the production of parahydroxybenzyl cyanide by reacting it with 2-hydroxy isobutyronitrile.