Styrene → Chlorodimethyl(2-phenylethyl)silane

HRID 2268187Notes

Reaction equation

HRID 2268187 reaction equation
[CH2:1]=[CH:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.[CH3:9][SiH:10]([CH3:12])[Cl:11]>[Pt].C1(C)C=CC=CC=1>[CH2:1]([Si:10]([CH3:12])([CH3:9])[Cl:11])[CH2:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1

Participants

5

Reactant 2

HCID 7501Styrene3×HCID 66108Chlorodimethylsilane2×

Product 1

HCID 86970Chlorodimethyl(2-phenylethyl)silaneYield 8.4%

Reagents, catalysts & solvents 2

HCID 23939PlatinumCatalystHCID 1140TolueneSolvent

Procedure

Reaction between styrene and dimethylchlorosilane with platinum catalyst in the presence of trimethylsilyl-N,N-dimethyl carbamate. 526 mg Styrene and 480 mg dimethylchlorosilane were introduced into a glass tube, and 41 mg of trimethylsilyl-N,N-dimethyl carbamate were added using a microsyringe. 0.65 mg Of a toluene solution of a 0-valent platinum complex of divinylsiloxane (0.4 wt % platinum content) was added. The tube was sealed with Teflon tape and a rubber septum and placed in a 100° C. oil bath where it was heated for 20 hours. After cooling, the tube contents were analyzed by gas chromatography revealing a styrene conversion of 38% and a phenethyl dimethylchlorosilane yield of 8.4%. The ratio between the phenethyl dimethylchlorosilane and the (α-methylbenzene) dimethylchlorosilane was 44:1.

Workup

  1. customplaced in a 100° C.
  2. temperaturewas heated for 20 hours
  3. temperatureAfter cooling

Sources & evidence

ORD record
ord-0c3c09b3a7a24d7bb547d0bc91fb84eb
Source dataset
uspto-grants-2001_12
Patent number
US06326506B1

Reaction notes

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