Trichloro(3-chloropropyl)silane → 3-(3-Chloropropyl)-1,1,1,5,5,5-hexamethyl-3-[(trimethylsilyl)oxy]trisiloxane

HRID 435763

Reaction equation

HRID 435763 reaction equation
[Cl:1][CH2:2][CH2:3][CH2:4][Si:5](Cl)(Cl)Cl.[Si:9]([O:13][Na])([CH3:12])([CH3:11])[CH3:10]>CCOCC>[Cl:1][CH2:2][CH2:3][CH2:4][Si:5]([O:13][Si:9]([CH3:12])([CH3:11])[CH3:10])([O:13][Si:9]([CH3:12])([CH3:11])[CH3:10])[O:13][Si:9]([CH3:12])([CH3:11])[CH3:10]

Participants

4

Reactant 2

HCID 75693Trichloro(3-chloropropyl)silaneHCID 178504319sodium trimethyl(oxido)silane

Product 1

HCID 27578913-(3-Chloropropyl)-1,1,1,5,5,5-hexamethyl-3-[(trimethylsilyl)oxy]trisiloxane

Reagents, catalysts & solvents 1

HCID 3283Diethyl EtherSolvent2×

Procedure

Gamma-chloropropyltrichlorosilane (21.2 g., 0.1 mole) is dissolved in 200 ml. of dry ether and an ether slurry of (33.6g, 0.3 mole) sodium trimethylsilanoate, (CH3)3SiONa, is added in small portions. The mixture is allowed to stand for 12 hours and is then refluxed for an additional 3 hours. Filtration of the sodium chloride and removal of the ether from the filtrate leaves gamma-chloropropyltris-trimethylsiloxysilane.

Workup

  1. temperatureis then refluxed for an additional 3 hours
  2. filtrationFiltration of the sodium chloride and removal of the ether from the filtrate

Sources & evidence

ORD record
ord-4b95dbfdd839442b853566681648315a
Source dataset
uspto-grants-1977_02
Patent number
US04006176

Linked notes

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