Tetramethoxysilane → HCID 23669514, compound

HRID 1658591Notes

Reaction equation

HRID 1658591 reaction equation
[CH3:1][O:2][Si:3]([O:8]C)([O:6][CH3:7])[O:4][CH3:5].[OH-].[K+:11]>CO>[CH3:1][O:2][Si:3]([O:6][CH3:7])([O:4][CH3:5])[O-:8].[K+:11]

Participants

4

Reactant 2

HCID 12682TetramethoxysilaneHCID 14797Potassium Hydroxide

Product 1

HCID 23669514HCID 23669514, compoundYield 100%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent2×

Procedure

A solution of 91.2 gm (0.7 mol) of tetramethoxy-silane in 100 ml of methanol was mixed with a solution of 33.0 gm of 85% potassium hydroxide solution (0.5 mol KOH) in 200 ml of methanol. The mixture was heated for about 15 minutes under reflux. Subsequently methanol and excess tetramethoxy-silane were distilled off under a water jet vacuum. Instead of the theoretically expected 88.2 gm (0.5 mol) of potassium trimethoxysilanolate, 84.5 gm of solid potassium salts were obtained, that is, in addition to potassium trimethoxy-silanolate, also a small amount of oligopotassium oligomethoxy-silanolates were obtained.

Workup

  1. temperatureThe mixture was heated for about 15 minutes
  2. temperatureunder reflux
  3. distillationSubsequently methanol and excess tetramethoxy-silane were distilled off under a water jet vacuum

Sources & evidence

ORD record
ord-be109f559c584836aa6da26dbabf323b
Source dataset
uspto-grants-1976_06
Patent number
US03965171

Reaction notes

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