Potassium bis(trimethylsilyl)amide → HCID 23714040, compound

HRID 889794Notes

Reaction equation

HRID 889794 reaction equation
C[Si]([N-][Si](C)(C)C)(C)C.[K+:10].[CH2:11]([Si:17]([NH:20][Si:21]([CH3:29])([CH3:28])[CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH3:27])([CH3:19])[CH3:18])[CH2:12][CH2:13][CH2:14][CH2:15][CH3:16]>C1(C)C=CC=CC=1>[CH2:22]([Si:21]([N-:20][Si:17]([CH3:19])([CH3:18])[CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH3:16])([CH3:29])[CH3:28])[CH2:23][CH2:24][CH2:25][CH2:26][CH3:27].[K+:10]

Participants

4

Reactant 2

HCID 3251421Potassium bis(trimethylsilyl)amideHCID 125667781-Hexyl-N-[hexyl(dimethyl)silyl]-1,1-dimethylsilanamine

Product 1

HCID 23714040HCID 23714040, compound

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

Potassium bis(n-hexyldimethylsilyl)amide was prepared as follows: Potassium bis(trimethylsilyl)amide (5.07 g, 25.6 mmol) and bis(n-hexyldimethylsilyl)amine (7.66 g, 25.6 mmol) were added to a flask and 50 mL toluene was added. The clear yellow solution was stirred at room temperature for 18 hours and then refluxed for two hours. The toluene and hexamethyldisilazane byproduct were removed from the brown toluene solution under vacuum with heating to 150° C. to yield a brown oil (5.40 g, 63%). Its viscosity was measured to be 271 centipoise at 40° C. It may be flash vaporized from a heated nozzle for CVD applications. Alternatively, it may be dissolved in small amounts of organic solvents to form concentrated solutions that may be flash vaporized.

Workup

  1. temperaturerefluxed for two hours
  2. customThe toluene and hexamethyldisilazane byproduct were removed from the brown toluene solution under vacuum
  3. temperaturewith heating to 150° C.

Sources & evidence

ORD record
ord-a6e707ed5ad04178a134b282d26cc20c
Source dataset
uspto-grants-2006_02
Patent number
US06994800B1

Reaction notes

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