Trimethoxysilane → HCID 22486972, compound

HRID 2406911Notes

Reaction equation

HRID 2406911 reaction equation
[CH:1]([CH:3]1[CH2:8][CH2:7][CH:6]([CH:9]=[CH2:10])[CH2:5][CH:4]1[CH:11]=[CH2:12])=[CH2:2].[CH3:13][O:14][SiH:15]([O:18][CH3:19])[O:16][CH3:17]>[Pt]>[CH3:13][O:14][Si:15]([O:18][CH3:19])([O:16][CH3:17])[CH2:2][CH2:1][CH:3]1[CH2:8][CH2:7][CH:6]([CH2:9][CH2:10][Si:15]([O:18][CH3:19])([O:16][CH3:17])[O:14][CH3:13])[CH2:5][CH:4]1[CH2:11][CH2:12][Si:15]([O:18][CH3:19])([O:16][CH3:17])[O:14][CH3:13]

Participants

4

Reactant 2

HCID 17215TrimethoxysilaneHCID 96529Cyclohexane, 1,2,4-triethenyl-

Product 1

HCID 22486972HCID 22486972, compound

Reagents, catalysts & solvents 1

HCID 23939PlatinumCatalyst2×

Conditions

Temperature
90 °C

Procedure

Into a 500 ml round-bottom flask, equipped with an addition funnel, thermometer, condenser and a magnetic stirrer, were charged 1,2,4-trivinylcyclohexane (50 grams, 0.31 mole, from Acros Organics) and platinum catalyst (10 ppm of H2PtCl6 solution from Sigma-Aldrich). The mixture was heated to 90° C. and dry air was bubbled into the reaction mixture. Trimethoxysilane (124 grams, 1.02 mole, from Momentive), was added to the flask using an addition funnel over a 70-minute period at such a rate as to maintain the reaction temperature at approximately 90° C. The reaction was recatalyzed with platinum catalysts (10 ppm of platinum-divinyltetramethyldisiloxane complex, containing 1.9% Pt, Karstedt's catalyst; see U.S. Pat. No. 377,452) and promoted with dried air sparge. The reaction was monitored using gas chromatography. After the reaction was complete, excess trimethoxysilane was removed by vacuum distillation. The final product is a clear yellow liquid.

Workup

  1. customInto a 500 ml round-bottom flask, equipped with an addition funnel
  2. customdry air
  3. customwas bubbled into the reaction mixture
  4. customover a 70-minute
  5. temperatureto maintain the reaction temperature at approximately 90° C
  6. customwith dried air
  7. customsparge
  8. customexcess trimethoxysilane was removed by vacuum distillation

Sources & evidence

ORD record
ord-9648f401cfa5401ca1d47e692910a8b7
Source dataset
uspto-grants-2014_08
Patent number
US08809479B2

Reaction notes

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