Process for the production of 2,2,6-trimethylcyclohexane-1,4-dione by epoxidation of .beta.-isophorone with organic percarboxylic acids at a water content below 5 wt.-% and subsequent isomerization of the mixture of .beta.-isophorone epoxide and hydroxyisophorone.

Processo para a produção de 2,2,6-trimethylcyclohexane-1,4-dione pelo epoxidation do beta.-isophorone com ácidos percarboxylic orgânicos em um índice de água abaixo de 5 wt.-% e pelo isomerization subseqüente da mistura do epoxide e do hydroxyisophorone do beta.-isophorone.

 
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