Allyl glycidyl ether → Glycidoxypropyltrimethoxysilane

HRID 1665848Notes

Reaction equation

[CH2:1]([O:5][CH2:6][CH:7]=[CH2:8])[CH:2]1[O:4][CH2:3]1.[CH3:9][O:10][SiH:11]([O:14][CH3:15])[O:12][CH3:13]>>[CH2:1]([O:5][CH2:6][CH2:7][CH2:8][Si:11]([O:14][CH3:15])([O:12][CH3:13])[O:10][CH3:9])[CH:2]1[O:4][CH2:3]1

Participants

Reactant 2

HCID 7838Allyl glycidyl ether

HCID 17215Trimethoxysilane

Product 1

HCID 17317Glycidoxypropyltrimethoxysilane

Procedure

In the example, allyl glycidyl ether was reacted with trimethoxysilane to form 3-glycidyloxypropyltrimethoxysilane. The reaction was carried out continuously by feeding the raw materials (allyl glycidyl ether: 9.6 kg/h and trimethoxysilane: 8 kg/h) together with the Pt Karstedt catalyst in the presence of acetic acid (0.05% by weight, based on the total mass of reactants) into a tube reactor. The concentration of the catalyst based on metallic platinum was 2 ppm. The Pt Karstedt catalyst was dissolved in 3-glycidyloxypropyltrimethoxysilane. The reaction temperature was about 160° C. The reaction was carried out using an excess of allyl glycidyl ether (molar ratio of allyl glycidyl ether:trimethoxysilane=1.28:1). The reaction mixture formed was composed of:

Sources & evidence

ORD record: ord-3214acb9d0264e39b687c145b0455a73
Source dataset: uspto-grants-2011_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08039646B2

Reaction notes

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