Ethylene carbonate → Ethylene carbonate

HRID 247713

Reaction equation

HRID 247713 reaction equation
[C:1]1(=[O:6])[O:5][CH2:4][CH2:3][O:2]1.CC(O)COC(CO)C>O.O.O.[O-][Sn]([O-])=O.[Na+].[Na+]>[C:1]1(=[O:6])[O:5][CH2:4][CH2:3][O:2]1.[C:1](=[O:5])=[O:2]

Participants

5

Reactant 2

HCID 7303Ethylene carbonateHCID 328812-(2-Hydroxypropoxy)-1-propanol

Product 2

HCID 280Carbon DioxideYield 14.7%HCID 7303Ethylene carbonateYield 100%

Reagents, catalysts & solvents 1

HCID 21977542Sodium StannateCatalyst

Conditions

Temperature
175 °C

Procedure

A 10:1 mole ratio of ethylene carbonate to dipropylene glycol is heated with stirring under a nitrogen atmosphere for 4 hours at 175° C. using 0.5 percent sodium stannate trihydrate as catalyst to give 100 percent ethylene carbonate conversion to a poly(alkylene carbonate) polyol with 14.7 percent carbon dioxide The catalyst is removed as in Example 1.

Sources & evidence

ORD record
ord-02a49089b68b4c768b9d92d5910ce35c
Source dataset
uspto-grants-1987_11
Patent number
US04709069

Linked notes

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