Trivinylchlorosilane → Tris(3,3,6,6,6-pentachloro-3,6-disilahexyl)chlorosilane

HRID 2420630Notes

Reaction equation

HRID 2420630 reaction equation
[CH:1]([Si:3]([CH:7]=[CH2:8])([CH:5]=[CH2:6])[Cl:4])=[CH2:2].[Cl:9][Si:10]([Cl:17])([Cl:16])[CH2:11][CH2:12][SiH:13]([Cl:15])[Cl:14]>>[Cl:14][Si:13]([Cl:15])([CH2:12][CH2:11][Si:10]([Cl:17])([Cl:16])[Cl:9])[CH2:2][CH2:1][Si:3]([CH2:7][CH2:8][Si:13]([Cl:15])([Cl:14])[CH2:12][CH2:11][Si:10]([Cl:17])([Cl:16])[Cl:9])([CH2:5][CH2:6][Si:13]([Cl:15])([Cl:14])[CH2:12][CH2:11][Si:10]([Cl:17])([Cl:16])[Cl:9])[Cl:4]

Participants

3

Reactant 2

HCID 575734TrivinylchlorosilaneHCID 1019294941,1,1,4,4-Pentachloro-1,4-disilabutane3×

Product 1

HCID 59554804Tris(3,3,6,6,6-pentachloro-3,6-disilahexyl)chlorosilaneYield 66%

Conditions

Temperature
80 °C

Procedure

11.00 g (0.076 mol) trivinylchlorosilane was added to a 100 ml vessel followed by 2 ml 1,1,1,4,4-pentachloro-1,4-disilabutane. The solution was heated to 80° C. and 15 μL of a 10% H2PtCl6/IPA-solution was added. Strong exothermic reaction was observed and heat was switched off. Rest of 1,1,1,4,4-pentachloro-1,4-disilabutane was added slowly during 30 min keeping the temperature of the solution below 130° C. The total amount of 1,1,1,4,4-pentachloro-1,4-disilabutane was 61.50 g (0.234 mol, 2.6% excess). After addition heat was again switched on and solution was stirred for an hour at 110° C. After that solution was distilled yielding 47.08 g (66%) tris(3,3,6,6,6-pentachloro-3,6-disilahexyl)chlorosilane. B.p. 264° C./<0.5 mbar.

Workup

  1. customStrong exothermic reaction
  2. temperatureheat
  3. customthe temperature of the solution below 130° C
  4. additionAfter addition
  5. temperatureheat
  6. distillationAfter that solution was distilled

Sources & evidence

ORD record
ord-4d8d3d9d33704160a92dbd9b1a29d2a4
Source dataset
uspto-grants-2011_06
Patent number
US07955660B2

Reaction notes

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