Process for the preparation of cyclic sulfates

Details Process for the preparation of cyclic sulfates Process for the preparation of cyclic sulfates

C - Chemistry, Metallurgy

07

D

260/328, 260/328

C07D 327/10 (2006.01)

Patent

CA 1305712

BREVET D'INVENTION PROCEDE DE PREPARATION DE SULFATES CYCLIQUES RHONE-POULENC-SANTE ABREGE Procédé de préparation d'un sulfate cyclique de formule générale (I) par action rapide a une température comprise entre 150 et 250°C d'acide sulfurique concentré avec un glycol de formule générale (II). Dans les formules générales (I), et (II), R1, R2, R3, R4, R5 et R6, identiques ou différents, représentent hydrogène, halogène, alkyle, alkoxy, aryle, aryloxy ou alkoxycarbonyle et n est égal à 0 ou 1. Image Image (I) (II) Pas de figure pour l'abrégé.

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