| abstract |
Process for the preparation of cyclic sulfates of general formula (I) by oxidation of a cyclic sulfite of general formula (II) using an alkaline or alkaline earth hypohalogenite and a catalytic amount of a ruthenium derivative (RuO₂ , RuCl₃).n n n In the general formulas (I) and (II), R₁, R₂, R₃, R₄, R₅ and R₆, identical or different, represent hydrogen, halogen, alkyl, alkoxy, aryl, aryloxy or alkoxycarbonyl. |