Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1989-05-15
1990-05-08
Lee, Mary C.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
549 34, C07D32710, C07B 4104
Patent
active
049240072
ABSTRACT:
Cyclic sulphates of formula ##STR1## in which R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6, which are identical or different, each denote hydrogen, halogen, alkyl, alkoxy, aryloxy or alkoxycarbonyl and n is 0 or 1, are prepared by rapid reaction, at a temperature of 150.degree. to 250.degree. C., of concentrated sulphuric acid with a glycol of formula ##STR2##
REFERENCES:
Lictenberger et al., Bull. Soc. Chim. (France), 1948, pp. 1002-1012.
Massonneau Viviane
Mulhauser Michel
Howard M. S.
Lee Mary C.
Rhone-Poulenc Sante
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