1,1,3,3-Tetramethyl-disiloxane → HCID 131722272, compound

HRID 566631Notes

Reaction equation

HRID 566631 reaction equation
[CH:1]([Si:3]([O:8][CH3:9])([O:6][CH3:7])[O:4][CH3:5])=[CH2:2].[CH3:10][SiH:11]([CH3:16])[O:12][SiH:13]([CH3:15])[CH3:14]>>[CH:1]([Si:3]([O:8][CH3:9])([O:6][CH3:7])[O:4][CH3:5])=[CH2:2].[CH3:10][SiH:11]([CH3:16])[O:12][SiH:13]([CH3:15])[CH3:14]

Participants

3

Reactant 2

HCID 186591,1,3,3-Tetramethyl-disiloxaneHCID 76004Vinyltrimethoxysilane

Product 1

HCID 131722272HCID 131722272, compoundYield 71%

Conditions

Temperature
80 °C

Procedure

280 mg Vinyltrimethoxysilane and 381 mg 1,1,3,3-tetramethyldisiloxane were placed in a nitrogen-purged glass tube. This was followed by the addition of 28 mg dimethylacetoxysilane and 0.005 mL of a toluene solution (platinum content=0.04 weight %) of a zero-valent platinum complexed with divinylsiloxane. The tube was then sealed with Teflon® tape and a rubber septum and heated for 1 hour in an oil bath at 80° C. After cooling, GC analysis of the product showed the following: the vinyltrimethoxysilane had been consumed; the vinyltrimethoxysilane:1,1,3,3-tetramethyldisiloxane 1:1 adduct had been produced in a yield of 71%; and the α-adduct:β-adduct ratio was 1:5.7.

Workup

  1. custompurged glass tube
  2. additionThis was followed by the addition of 28 mg dimethylacetoxysilane and 0.005 mL of a toluene solution (platinum content=0.04 weight %) of a zero-valent platinum
  3. customThe tube was then sealed with Teflon® tape
  4. temperatureAfter cooling
  5. customthe vinyltrimethoxysilane had been consumed

Sources & evidence

ORD record
ord-98391e7aff3e40b088e815aab4f35f48
Source dataset
uspto-grants-2001_01
Patent number
US06175031B1

Reaction notes

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