Methyldichlorosilane → MeSiCl2CH2CH2CH2CHMe2

HRID 65511

Reaction equation

HRID 65511 reaction equation
[CH3:1][SiH:2]([Cl:4])[Cl:3].[CH3:5][CH:6]([CH3:10])[CH2:7][CH:8]=[CH2:9]>>[CH3:1][Si:2]([CH2:9][CH2:8][CH2:7][CH:6]([CH3:10])[CH3:5])([Cl:4])[Cl:3]

Participants

3

Reactant 2

HCID 6376MethyldichlorosilaneHCID 127244-Methyl-1-pentene

Product 1

HCID 13950651MeSiCl2CH2CH2CH2CHMe2

Conditions

Temperature
50 °C

Procedure

In a 25 ml apparatus, there were combined 2.6 g (0.023 mol) of MeSiHCl2, 2.0 g (0.023 mol) of EtMe2SiH, and 1.9 g (0.023 mol) of 4-methyl-1-pentene. A few droplets of Pt catalyst solution were added at 22° C. Gentle heating caused an exothermic reaction to 53° C. over 21 min., followed by heating at 50° C. for 130 min. VPC analysis of the complete reaction showed equivalent yields of MeSiCl2CH2CH2CH2CHMe2 and EtMe2SiCH2CH2CH2CHMe2. This example shows that while the promoting effect of EtMe2SiH is nearly equivalent to that of Et3SiH for the reaction of MeSiHCl2 with 4-methyl-1-pentene, its competitive reactivity is significantly higher.

Workup

  1. additionA few droplets of Pt catalyst solution were added at 22° C
  2. temperatureGentle heating
  3. customan exothermic reaction to 53° C. over 21 min.
  4. customVPC analysis of the complete reaction

Sources & evidence

ORD record
ord-b13f81f9cd13465086b216b2b51d0bfc
Source dataset
uspto-grants-1986_09
Patent number
US04614812

Linked notes

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