Back to results
US 12,365,760 B2Granted
Process for the synthesis of polycarbonates from cyclic monothiocarbonates
AssigneeBASF SE
InventorsPeter Rudolf, Indre Thiel, Thomas Maximilian Wurm
Life of this patent
Estimating the term…
Abstract
A process can be used for the synthesis of compounds containing at least one non-cyclic carbonate group, wherein a compound A) containing at least one five-membered cyclic monothiocarbonate group is reacted with at least one hydroxy group of a compound B) or of compound A) itself.
Claims16
A process for the synthesis of a compound comprising at least one non-cyclic carbonate group, the process comprising:
- transferring at least one hydroxy group of a compound (B) or of a compound (A) into at least one alcoholate group,
- reacting the compound (A) comprising at least one five-membered cyclic monothiocarbonate group with at least one alcoholate group of compound (B) or of compound (A) itself;
- wherein the at least one hydroxy group of compound (B) or of compound (A) is transferred into the at least one alcoholate group before the reacting or by a catalyst used in the reacting.
A carbonate compound of formula (IIIa)
Dependencies are inferred from the claim text.