Sodium Azide → (2-Azido-3-fluoro-propyl)benzene

HRID 749298Notes

Reaction equation

HRID 749298 reaction equation
CS(O[CH:6]([CH2:14][F:15])[CH2:7][C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)(=O)=O.[N-:16]=[N+:17]=[N-:18].[Na+]>CN(C=O)C.O.[Cl-].[Na+].O>[N:16]([CH:6]([CH2:14][F:15])[CH2:7][C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)=[N+:17]=[N-:18]

Participants

6

Reactant 2

HCID 33557Sodium AzideHCID 866014541-Fluoromethyl-2-phenylethyl methanesulfonate

Product 1

HCID 22054864(2-Azido-3-fluoro-propyl)benzeneYield 82.5%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 57417360Sodium chloride; waterSolvent

Conditions

Temperature
80 °C

Procedure

To a stirred solution of 1-fluoromethyl-2-phenylethyl methanesulfonate (1.1 g) in anhydrous DMF (15 mL) under nitrogen was added sodium azide (0.53 g) followed by heating at 80° C. overnight. The cooled reaction mixture was diluted with equal parts of water and brine and extracted with EtOAc. The extracts were washed with water and brine, dried over Na2SO4, and concentrated to an oil which was chromatographed over silica gel with a mixture of EtOAc and hexane to give 0.70 g of the title compound. MS ES (M++H−N2) 151.

Workup

  1. customThe cooled reaction mixture
  2. extractionextracted with EtOAc
  3. washThe extracts were washed with water and brine
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated to an oil which
  6. customwas chromatographed over silica gel with a mixture of EtOAc and hexane

Sources & evidence

ORD record
ord-1309630df0844a67ae1270f40a353ec4
Source dataset
uspto-grants-2008_07
Patent number
US07402604B2

Reaction notes

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