Sodium Azide → (4-Azidobut-1-ynyl)triethylsilane

HRID 1918629Notes

Reaction equation

HRID 1918629 reaction equation
[N-:1]=[N+:2]=[N-:3].[Na+].CC1C=CC(S(O[CH2:16][CH2:17][C:18]#[C:19][Si:20]([CH2:25][CH3:26])([CH2:23][CH3:24])[CH2:21][CH3:22])(=O)=O)=CC=1>CN(C=O)C>[N:1]([CH2:16][CH2:17][C:18]#[C:19][Si:20]([CH2:25][CH3:26])([CH2:21][CH3:22])[CH2:23][CH3:24])=[N+:2]=[N-:3]

Participants

4

Reactant 2

HCID 33557Sodium AzideHCID 120301384-(Triethylsilyl)but-3-yn-1-yl 4-methylbenzene-1-sulfonate

Product 1

HCID 86663839(4-Azidobut-1-ynyl)triethylsilaneYield 103.6%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
60 °C

Procedure

Sodium azide (1.80 g; 27.65 mmol) was added to a solution of 4-(triethylsilyl)but-3-ynyl 4-methylbenzenesulfonate (3.12 g; 9.22 mmol) in DMF (15 mL) and stirred at 60° C. for 3 hours. After cooling, the volatiles were removed under reduced pressure and the residue was partitioned between saturated ammonium chloride and ethyl acetate. The organic layer was dried and concentrated under reduced pressure to afford 2.0 g (quantitative yield) of (4-azidobut-1-ynyl)triethylsilane as a colorless oil.

Workup

  1. temperatureAfter cooling
  2. customthe volatiles were removed under reduced pressure
  3. customthe residue was partitioned between saturated ammonium chloride and ethyl acetate
  4. customThe organic layer was dried
  5. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-78d08e34d8764e85a6e07a976fadea3b
Source dataset
uspto-grants-2013_12
Patent number
US08618138B2

Reaction notes

Loading…