Dichlorodiphenylsilane → Phenyltrichlorosilane

HRID 1576357Notes

Reaction equation

HRID 1576357 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][SiH](Cl)Cl>[Cl-].[Al+3].[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 24811Trichlorosilane

Product 1

HCID 7372PhenyltrichlorosilaneYield 116.5%

Reagents, catalysts & solvents 1

HCID 6451240Aluminum(III) ChlorideCatalyst

Procedure

380 g of diphenyldichlorosilane, 22.5 g of anhydrous aluminium chloride and 2.3 g of anhydrous alumina (specific surface area : 0.1 m2 /g) are placed in a flask. 477 g of trichlorosilane are run in over the course of 6 hours 50 minutes, whilst keeping the reaction mixture at 70°C and distilling the dichlorosilane. A fraction weighing 76 g, containing 74% of dichlorosilane, is obtained. 370 g of phenyltrichlorosilane are obtained on distilling the mixture remaining in the flask.

Workup

  1. customare run in over the course of 6 hours 50 minutes
  2. customat 70°C
  3. distillationdistilling the dichlorosilane
  4. additioncontaining 74% of dichlorosilane
  5. customis obtained

Sources & evidence

ORD record
ord-61b4530af9d2479d97c86084e598a41e
Source dataset
uspto-grants-1976_09
Patent number
US03980686

Reaction notes

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