Water → HCID 23669511, compound

HRID 1658590Notes

Reaction equation

HRID 1658590 reaction equation
C[O-].[Na+:3].[Na].O.[CH3:6][O:7][Si:8]([O:13]C)([O:11][CH3:12])[O:9][CH3:10]>CO>[CH3:6][O:7][Si:8]([O:11][CH3:12])([O:9][CH3:10])[O-:13].[Na+:3]

Participants

6

Reactant 4

HCID 962WaterHCID 12682TetramethoxysilaneHCID 5360545SodiumHCID 10942334Sodium Methoxide

Product 1

HCID 23669511HCID 23669511, compoundYield 96.4%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent2×

Procedure

A solution of 81.0 gm (1.5 mols) of sodium methylate in methanol, prepared by reacting 34.0 gm (1.5 mols) of sodium with 500 ml of methanol, was first mixed with 27.0 gm (1.5 mols) of water, then with 1000 gm (6.6 mols) of tetramethoxy-silane. The mixture was heated for about 15 minutes under reflux. Methanol and the unreacted tetramethoxy-silane were then distilled off under a water jet vacuum. Instead of the theoretically expected 240.3 gm (1.5 mols) of sodium trimethoxy-silanolate, 231.5 gm of sodium trimethoxy-silanolate were obtained.

Workup

  1. temperatureThe mixture was heated for about 15 minutes
  2. temperatureunder reflux
  3. distillationMethanol and the unreacted tetramethoxy-silane were then distilled off under a water jet vacuum

Sources & evidence

ORD record
ord-be95154b0ec647cb828f5df992799900
Source dataset
uspto-grants-1976_06
Patent number
US03965170

Reaction notes

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