Ethylene carbonate → Ethylene carbonate

HRID 247709Notes

Reaction equation

HRID 247709 reaction equation
[C:1]1(=[O:6])[O:5][CH2:4][CH2:3][O:2]1>C(O)COCCO>[C:1]1(=[O:6])[O:5][CH2:4][CH2:3][O:2]1.[C:1](=[O:5])=[O:2]

Participants

4

Reactant 1

HCID 7303Ethylene carbonate

Product 2

HCID 280Carbon DioxideYield 23.7%HCID 7303Ethylene carbonateYield 97.5%

Reagents, catalysts & solvents 1

HCID 8117Diethylene GlycolSolvent

Conditions

Temperature
175 °C

Procedure

A 10:1 mole ratio of ethylene carbonate and diethylene glycol is heated with stirring under a nitrogen atmosphere for 3 hours at 175° C. using 0.5 percent Na2SnO3.3H2O as catalyst to give 97.5 percent ethylene carbonate conversion to a poly(alkylene carbonate) polyol with 23.7 percent carbon dioxide. The catalyst is removed as in Example 1.

Sources & evidence

ORD record
ord-d55c128e493543ae96f7edf2646d3d77
Source dataset
uspto-grants-1987_11
Patent number
US04709069

Reaction notes

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