Acetic Anhydride → Triacetin

HRID 407516Notes

Reaction equation

HRID 407516 reaction equation
[C:1]([O:4][C:5](=O)[CH3:6])(=[O:3])[CH3:2].[C:8]([O:11][CH2:12]CCC)(=[O:10])[CH3:9]>CS(O)(=O)=O>[CH3:9][C:8](=[O:10])[O:11][CH2:12][CH:5]([CH2:6][O:4][C:1](=[O:3])[CH3:2])[O:4][C:1](=[O:3])[CH3:2]

Participants

4

Reactant 2

HCID 7918Acetic AnhydrideHCID 31272Butyl Acetate

Product 1

HCID 5541Triacetin

Reagents, catalysts & solvents 1

HCID 6395Methanesulfonic AcidCatalyst

Procedure

Comments—example 4 shows that from a high ester content glycerin, using butyl acetate as azeotropic agent, methanesulfonic acid as catalyst, in the presence of combined alkalinity and complementing the reaction with acetic anhydride, it is possible to obtain a food grade triacetin.

Sources & evidence

ORD record
ord-73e595b089c84cc99f971b51a55f2e2a
Source dataset
uspto-grants-2014_06
Patent number
US08754253B2

Reaction notes

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