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

HRID 2119988Notes

Reaction equation

HRID 2119988 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-ff33dfe9318d4671a6825f61131444d1
Source dataset
uspto-grants-2004_02
Patent number
US06686488B2

Reaction notes

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