Water → 1-(Chloromethyl)-1,1,3,3,3-pentamethyldisiloxane

HRID 1112030Notes

Reaction equation

HRID 1112030 reaction equation
[CH3:1][Si:2]([CH3:6])([CH2:4][Cl:5])Cl.[CH3:7][Si:8]([CH3:11])([CH3:10])Cl.[OH2:12]>>[CH3:7][Si:8]([CH3:11])([CH3:10])[O:12][Si:2]([CH3:6])([CH3:1])[CH2:4][Cl:5]

Participants

4

Reactant 3

HCID 962WaterHCID 6397ChlorotrimethylsilaneHCID 74393Silane, chloro(chloromethyl)dimethyl-

Product 1

HCID 2628351-(Chloromethyl)-1,1,3,3,3-pentamethyldisiloxane

Procedure

134 ml. dimethylchloromethylchlorosilane (1 mole) and 127 ml. (1 mole) of trimethylchlorosilane are mixed and shaken thoroughly. When 600 ml. of distilled water is added, exothermic hydrolytic reactions occur immediately. The mixture is shaken on a mechanical shaker overnight to complete hydrolysis. The upper oily layer is separated and is dried over anhydrous sodium carbonate. After drying, the product is distilled through a column of 13 theoretical plates and the fraction which distills at 151°-152° C. is collected. The yield of pentamethylchloromethyldisiloxane (b.p. 151.8° C., d25 = 0.910, nD20 = 1.4106) is 30%.

Workup

  1. stirringThe mixture is shaken on a mechanical shaker overnight
  2. customhydrolysis
  3. customThe upper oily layer is separated
  4. dry with materialis dried over anhydrous sodium carbonate
  5. customAfter drying
  6. distillationthe product is distilled through a column of 13 theoretical plates
  7. distillationthe fraction which distills at 151°-152° C.
  8. customis collected

Sources & evidence

ORD record
ord-26919f0c2fd642f5ae110aba0e217bf5
Source dataset
uspto-grants-1978_10
Patent number
US04120570

Reaction notes

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