Methyldichlorosilane → Silane, dichloro(3-chloro-2-methylpropyl)methyl-

HRID 65498

Reaction equation

HRID 65498 reaction equation
[SiH:1]([CH2:6][CH3:7])([CH2:4][CH3:5])[CH2:2][CH3:3].[CH3:8][SiH:9]([Cl:11])[Cl:10].[CH2:12]([Cl:16])[C:13](=[CH2:15])[CH3:14]>>[CH3:8][Si:9]([CH2:14][CH:13]([CH2:12][Cl:16])[CH3:15])([Cl:11])[Cl:10].[Si:1]([CH2:14][CH:13]([CH2:12][Cl:16])[CH3:15])([CH2:6][CH3:7])([CH2:4][CH3:5])[CH2:2][CH3:3]

Participants

5

Reactant 3

HCID 6376MethyldichlorosilaneHCID 112413-Chloro-2-methyl-1-propeneHCID 12052Triethylsilane

Product 2

HCID 102659Silane, dichloro(3-chloro-2-methylpropyl)methyl-Yield 67.3%HCID 13765477Et3SiCH2CHMeCH2ClYield 20.9%

Conditions

Temperature
50 °C

Procedure

In a 100 ml apparatus, there were combined 11.6 g (0.1 mol) of Et3SiH, 11.5 g (0.1 mol) of MeSiHCl2, and 9.1 g (0.1 mol) of methallyl chloride. After heating to 50° C., the heat source was removed and 0.05 ml Pt catalyst solution added, causing an exothermic reaction to 83.5° C. in 4 min. The complete reaction was vacuum distilled, yielding 13.83 g (67.3%) of MeSiCl2CH2CHMeCH2Cl and 4.31 g (20.9%) of Et3SiCH2CHMeCH2Cl. This example shows that while MeSiHCl2 at the equimolar level promotes the reaction between Et3SiH and methallyl chloride, it also competes with Et3SiH, reducing the yield of Et3SiCH2CHMeCH2Cl.

Workup

  1. customthe heat source was removed
  2. addition0.05 ml Pt catalyst solution added
  3. customan exothermic reaction to 83.5° C. in 4 min
  4. customThe complete reaction
  5. distillationdistilled

Sources & evidence

ORD record
ord-6b8dfb8529bb4c13b6e615aeecee9d63
Source dataset
uspto-grants-1986_09
Patent number
US04614812

Linked notes

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