Back to results
US 2023/0167052 A1Published application
Process for preparing s,s'-dialkyldithiocarbonate from dialkyl disulfide
AssigneeArkema France
InventorsPaul-Guillaume Schmitt, Georges Frémy, Gilles-Olivier Gratien
Life of this patent
Estimating the term…
Abstract
A process for preparing an S,S′-dialkyldithiocarbonate from a dialkyl disulfide and from a particular metal catalyst, in the presence of carbon monoxide is described in addition to the use of S,S′-dialkyldithiocarbonates as reagents for the preparation of polycarbonates, compounds containing at least one urea and/or isocyanate function and compounds containing at least one thioalkyl function.
Claims10
Process for preparing at least one S,S′-dialkyldithiocarbonate, comprising the following step (a):
- (a) reacting in the presence of carbon monoxide:
- at least one dialkyl disulfide,
- at least one catalyst comprising at least one metal chosen from nickel, palladium and platinum, and
- optionally in the presence of a solvent or of a mixture of solvents.
1 more element
Dependencies are inferred from the claim text.