1,2-Dichloro-1,1,2,2-tetramethyldisilane → 1-Chloro-2-(tetramethylcyclopentadienyl)-1,1,2,2-tetramethyldisilane

HRID 1941436Notes

Reaction equation

HRID 1941436 reaction equation
[Cl:1][Si:2]([CH3:8])([CH3:7])[Si:3](Cl)([CH3:5])[CH3:4].[CH3:9][C-:10]1[CH:14]=[C:13]([CH3:15])[C:12]([CH3:16])=[C:11]1[CH3:17].[Na+]>COC>[Cl:1][Si:2]([CH3:8])([CH3:7])[Si:3]([CH:14]1[C:13]([CH3:15])=[C:12]([CH3:16])[C:11]([CH3:17])=[C:10]1[CH3:9])([CH3:5])[CH3:4]

Participants

4

Reactant 2

HCID 780451,2-Dichloro-1,1,2,2-tetramethyldisilaneHCID 86585831Sodium tetramethylcyclopentadienide

Product 1

HCID 1317203731-Chloro-2-(tetramethylcyclopentadienyl)-1,1,2,2-tetramethyldisilane

Reagents, catalysts & solvents 1

HCID 8254Dimethyl EtherSolvent2×

Procedure

To a solution of 4.802 g (25.7 mmol) 1,2-dichloro-1,1,2,2-tetramethyldisilane in 50 mL dimethylether was slowly added a solution of 2.285 g (12.8 mmol) sodium 1,2,3,4-tetramethylcyclopentadienide in 30 mL dimethylether. The reaction mixture was stirred several hours, then the solvent was removed, the residue was extracted with pentane and filtered. The pentane was removed under reduced pressure to give the product as a light-yellow oil. Mass spec: m/e 272 (8%). 1H NMR (C6D6) δ 2.70 (s, 1H), 1.83 (s, 6H), 1.69 (s, 6H), 0.28 (s, 6H), 0.23 (s, 6H); 13C NMR (C6D6) δ 135.8, 134.0, 54.4, 14.6, 11.4, 3.2, -2.4.

Workup

  1. customthe solvent was removed
  2. extractionthe residue was extracted with pentane
  3. filtrationfiltered
  4. customThe pentane was removed under reduced pressure

Sources & evidence

ORD record
ord-4931df1d48da436da69791032599bccc
Source dataset
uspto-grants-1997_12
Patent number
US05703187

Reaction notes

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