Styrene → Phenethyltriethoxysilane

HRID 2082418Notes

Reaction equation

HRID 2082418 reaction equation
[CH2:1]([O:3][SiH:4]([O:8][CH2:9][CH3:10])[O:5][CH2:6][CH3:7])[CH3:2].[CH2:11]=[CH:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1>C1(C)C(C)=CC=CC=1>[C:13]1([CH2:12][CH2:11][Si:4]([O:8][CH2:9][CH3:10])([O:5][CH2:6][CH3:7])[O:3][CH2:1][CH3:2])[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1

Participants

4

Reactant 2

HCID 7501StyreneHCID 13830Triethoxysilane

Product 1

HCID 11097560PhenethyltriethoxysilaneYield 45%

Reagents, catalysts & solvents 1

HCID 7237O-XyleneSolvent

Conditions

Temperature
50 °C

Procedure

Equal molar amounts of triethoxysilane (5 mL) and styrene (3.1 mL) were combined with 10 microliters of a 5% platinum siloxane complex in xylene as shown by Karstedt, U.S. Pat. No. 3,775,452. After 30 minutes at 50° C. with stirring, there was obtained 45% yield of phenylethyltriethoxysilane based on gas chromatography analysis. The same reaction was repeated except that 0.25 g of β-cyclodextrin was added to the mixture. After 30 minutes at 50° C., there was obtained a 100% conversion to phenylethyltriethoxysilane based on gas chromatography analysis.

Sources & evidence

ORD record
ord-98515568c05a4e77a90c732161fd8282
Source dataset
uspto-grants-1993_02
Patent number
US05189131

Reaction notes

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