Styrene → Chlorodimethyl(2-phenylethyl)silane

HRID 2268189Notes

Reaction equation

HRID 2268189 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 84%

Reagents, catalysts & solvents 2

HCID 23939PlatinumCatalystHCID 1140TolueneSolvent

Procedure

Reaction between styrene and dimethylchlorosilane with platinum catalyst (no substance acting as auxiliary catalyst). 526 mg Styrene and 408 mg dimethylchlorosilane were introduced into a glass tube, and 2.5 mg of a toluene solution of a 0-valent platinum complex of divinylsiloxane (0.04 wt % platinum content) were added. The tube was sealed with Teflon tape and a rubber septum and then placed in a 50° C. oil bath where it was heated for 30 minutes. After cooling, the tube contents were analyzed by gas chromatography revealing a styrene conversion of 98% and a phenethyldimethylchlorosilane yield of 84%. The ratio between the phenethyldimethylchlorosilane and (α-methylbenzyl)dimethylchlorosilane was 4.7:1.

Workup

  1. customplaced in a 50° C.
  2. temperaturewas heated for 30 minutes
  3. temperatureAfter cooling

Sources & evidence

ORD record
ord-871b954b45a44332a53220e3fefd3346
Source dataset
uspto-grants-2001_12
Patent number
US06326506B1

Reaction notes

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