Process for the manufacture of a cyclic diester of an alpha-hydroxyacid

Process for the manufacture of a cyclic diester of an alpha-hydroxyacid

Process for the manufacture of a cyclic diester of an alpha-hydroxyacid comprising heating the alpha-hydroxyacid at a temperature from 100 to 250° C. in the presence of at least one polyol and of at least one catalyst selected from the group consisting carboxylates and alkoxides of Ti, Zr, Al and Sn...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WAUTIER HENRI GEORGES GHISLAIN, MARCHAND DOMINIQUE FRANCOIS ACHILLE
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:Process for the manufacture of a cyclic diester of an alpha-hydroxyacid comprising heating the alpha-hydroxyacid at a temperature from 100 to 250° C. in the presence of at least one polyol and of at least one catalyst selected from the group consisting carboxylates and alkoxides of Ti, Zr, Al and Sn.