Styrene → HCID 131722271, compound

HRID 566635Notes

Reaction equation

HRID 566635 reaction equation
[CH2:1]=[CH:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.[CH3:9][SiH:10]([CH3:15])[O:11][SiH:12]([CH3:14])[CH3:13]>C1(C)C=CC=CC=1>[CH2:1]=[CH:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.[CH3:9][SiH:10]([CH3:15])[O:11][SiH:12]([CH3:14])[CH3:13]

Participants

4

Reactant 2

HCID 7501StyreneHCID 186591,1,3,3-Tetramethyl-disiloxane

Product 1

HCID 131722271HCID 131722271, compoundYield 93%

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Conditions

Temperature
60 °C

Procedure

252 mg Styrene, 91 mg 1,1,3,3-tetramethyldisiloxane, and 64 mg toluene were placed in a nitrogen-purged glass tube. This was followed by the addition of 0.01 mL trimethylacetoxysilane and 0.002 mL of a toluene solution (platinum content=0.4 weight %) of a zero-valent platinum complexed with divinylsiloxane. The tube was then sealed with Teflon® tape and a rubber septum and heated for 2 hours in an oil bath at 60° C. After cooling, GC analysis of the product showed the following: the 1,1,3,3-tetramethyldisiloxane had been consumed; the styrene:1,1,3,3-tetramethyldisiloxane 2:1 adduct had been produced in a yield of 93%; and the α,α-adduct:α,β-adduct:β,β-adduct ratio was 1:4.2:5.7.

Workup

  1. custompurged glass tube
  2. additionThis was followed by the addition of 0.01 mL trimethylacetoxysilane and 0.002 mL of a toluene solution (platinum content=0.4 weight %) of a zero-valent platinum
  3. customThe tube was then sealed with Teflon® tape
  4. temperatureAfter cooling
  5. customthe 1,1,3,3-tetramethyldisiloxane had been consumed

Sources & evidence

ORD record
ord-169203368e844a61816e9781b84cd1b3
Source dataset
uspto-grants-2001_01
Patent number
US06175031B1

Reaction notes

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