Water → HCID 123172095, compound

HRID 1608889Notes

Reaction equation

HRID 1608889 reaction equation
Cl[Si:2]([CH3:14])([CH2:4][CH2:5][Si:6]([CH3:13])([CH3:12])[CH2:7][Si:8]([CH3:11])([CH3:10])[CH3:9])[CH3:3].[H-].[H-].[H-].[H-].[Li+].[Al+3].O.[OH-].[Na+]>CCOCC>[CH3:14][SiH:2]([CH2:4][CH2:5][Si:6]([CH3:13])([CH3:12])[CH2:7][Si:8]([CH3:11])([CH3:10])[CH3:9])[CH3:3]

Participants

6

Reactant 4

HCID 962WaterHCID 14798Sodium HydroxideHCID 20082689HCID 20082689, compoundHCID 21226445Aluminium lithium hydride

Product 1

HCID 123172095HCID 123172095, compoundYield 92.9%

Reagents, catalysts & solvents 1

HCID 3283Diethyl EtherSolvent

Procedure

About 77.4 g (0.29 mol) of the chlorosilane described above were added dropwise to a suspension containing 3.2 g (0.084 mol) of LiAlH4 in 150 ml of absolute ether while stirring at 10°-30° C. over a period of 3 hours. Continuation of the reaction at room temperature for 4 hours was followed by cautious decomposition of the excess alanate with water, and the mixture was made basic with 10 ml of 5N NaOH and the phases were separated. After working up the ether phase, the distilled residue yielded 62.5 g (92.9% of theory) of 2,5,5,7,7-pentamethyl-2,5,7-trisilaoctane at 82°-83° C. under 134 Pa. C10H28Si3.

Workup

  1. customContinuation of the reaction at room temperature for 4 hours
  2. customthe phases were separated

Sources & evidence

ORD record
ord-7e0dbb6954bd4e3eab6fcc30942f29c5
Source dataset
uspto-grants-1995_03
Patent number
US05399290

Reaction notes

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