Dichlorodiphenylsilane → Phenyltrichlorosilane

HRID 1576359Notes

Reaction equation

HRID 1576359 reaction equation
C1([Si:7]([C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)([Cl:9])[Cl:8])C=CC=CC=1.[Cl:16][SiH2]Cl>Cl>[C:10]1([Si:7]([Cl:8])([Cl:9])[Cl:16])[CH:11]=[CH:12][CH:13]=[CH:14][CH:15]=1

Participants

4

Reactant 2

HCID 6627DichlorodiphenylsilaneHCID 61330Dichlorosilane

Product 1

HCID 7372PhenyltrichlorosilaneYield 279.6%

Reagents, catalysts & solvents 1

HCID 313Hydrochloric AcidSolvent

Conditions

Temperature
70 °C

Procedure

380 g of diphenyldichlorosilane (in which 0.7 g of hydrogen chloride has been dissolved beforehand by bubbling in the gas) and 22.5 g of aluminium chloride are introduced into the flask. 80 cm3 of trichlorosilane are run in, the mixture is heated to 70°C and then 477 g of trichlorosilane are introduced gradually over the course of 7 hours 30 minutes, whilst distilling the resulting dichlorosilane as it is formed. A distillate weighing 79 g, containing 60.8 g of dichlorosilane, is obtained. 356 g of phenyltrichlorosilane are obtained on distilling the mixture remaining in the flask.

Workup

  1. customby bubbling in the gas) and 22.5 g of aluminium chloride
  2. additionare introduced into the flask
  3. addition477 g of trichlorosilane are introduced gradually over the course of 7 hours 30 minutes
  4. distillationwhilst distilling the resulting dichlorosilane as it
  5. customis formed
  6. customis obtained

Sources & evidence

ORD record
ord-44e7fd4c2b2a4b798c85cd0327c01b33
Source dataset
uspto-grants-1976_09
Patent number
US03980686

Reaction notes

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