Acetic Anhydride → Ether acetate

HRID 2225952Notes

Reaction equation

HRID 2225952 reaction equation
[O:1]1[CH2:5][CH2:4][CH2:3][CH2:2]1.[C:6]([O:9]C(=O)C)(=[O:8])[CH3:7]>C(O)(=O)C>[CH3:3][CH2:2][O:1][CH2:5][CH3:4].[C:6]([O-:9])(=[O:8])[CH3:7]

Participants

4

Reactant 2

HCID 7918Acetic AnhydrideHCID 8028Tetrahydrofuran

Product 1

HCID 21226428Ether acetate

Reagents, catalysts & solvents 1

HCID 176Acetic AcidSolvent

Conditions

Temperature
45 °C

Procedure

The obtained catalyst was pulverized into 40-80 mesh. 20 g of the pulverized catalyst was placed in a slurry reactor, 100 g of tetrahydrofuran, 8 g of acetic anhydride and 1 g of acetic acid were added. The temperature of the reactor was raised to 45° C. and reacted for 90 minutes. After filtration and separation unreacted tetrahydrofuran by reduced distillation, polytetramethylene ether acetate was obtained. The properties of the resultant polymer are listed in Table 1.

Workup

  1. customreacted for 90 minutes
  2. filtrationAfter filtration and separation unreacted tetrahydrofuran
  3. distillationby reduced distillation

Sources & evidence

ORD record
ord-900975889f314e99bf65d62fd4f6079a
Source dataset
uspto-grants-1994_09
Patent number
US05344964

Reaction notes

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