PROCESS FOR THE PREPARATION OF CYCLIC SULPHATES

摘要

Process for the preparation of a cyclic sulphate of general formula (I) by rapid reaction at a temperature of between 150 and 250 DEG C of concentrated sulphuric acid with a glycol of general formula (II). …In the general formulae (I) and (II), R1, R2, R3, R4, R5 and R6, which are identical or different, denote hydrogen, halogen, alkyl, alkoxy, aryl, aryloxy or alkoxycarbonyl and n is equal to 0 or 1. ……