Propylene Oxide → Propylene oxide butylene oxide

HRID 635783

Reaction equation

HRID 635783 reaction equation
[CH2:1]1[O:4][CH:2]1[CH3:3].[CH2:5]1[O:9][CH2:8][CH2:7][CH2:6]1>[OH-].[K+].C(O)C(O)COCC(O)CO>[CH2:1]1[O:4][CH:2]1[CH3:3].[CH2:8]1[O:9][CH2:5][CH2:6][CH2:7]1

Participants

5

Reactant 2

HCID 6378Propylene OxideHCID 8028Tetrahydrofuran

Product 1

HCID 22138293Propylene oxide butylene oxideYield 375.6%

Reagents, catalysts & solvents 2

HCID 14797Potassium HydroxideCatalystHCID 42953DiglycerinCatalyst

Procedure

In a 15-liter autoclave were placed 166 g of diglycerol as a starting material, 32 g of potassium hydroxide as a catalyst, 9,290 g of propylene oxide, and 1,460 g of butylene oxide and the reaction was carried out for 16 hours at 110° C. Then, the reaction mixture was subjected to a neutralization treatment, a desalting treatment, and a purification treatment to obtain 9,900 g of a tetrafunctional propylene oxide-butylene oxide random copolymer. The molecular weight of the copolymer was 10,900 (as calculated by the hydroxyl group value).

Sources & evidence

ORD record
ord-5c0898ec37ca44b7ab9228b4e71da8e9
Source dataset
uspto-grants-2001_02
Patent number
US06190804B1

Linked notes

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