Sodium Azide → 8-(Azidomethyl)quinoline

HRID 1861676Notes

Reaction equation

HRID 1861676 reaction equation
Br[CH2:2][C:3]1[CH:4]=[CH:5][CH:6]=[C:7]2[C:12]=1[N:11]=[CH:10][CH:9]=[CH:8]2.[N-:13]=[N+:14]=[N-:15].[Na+]>CN(C=O)C.CCOC(C)=O>[N:13]([CH2:2][C:3]1[CH:4]=[CH:5][CH:6]=[C:7]2[C:12]=1[N:11]=[CH:10][CH:9]=[CH:8]2)=[N+:14]=[N-:15]

Participants

5

Reactant 2

HCID 33557Sodium AzideHCID 3469148-(Bromomethyl)quinoline

Product 1

HCID 120186978-(Azidomethyl)quinoline

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of 1.0119 g (4.56 mmol) 20 in 25 mL of DMF was added 0.3557 g (5.47 mmol) sodium azide. After 4.5 h at room temperature, the reaction mixture was diluted with 80 mL EtOAc and washed with 40 mL brine. The aqueous layer was extracted with 20 mL EtOAc. The combined organics were dried over Na2SO4, filtered and concentrated in vacuo. Purification by flash chromatography (60×220 mm silica gel, linear gradient 5-20% (EtOAc:hexane) provided 21. 1H NMR (CDCl3, 400 MHz) δ 8.965 (dd, 1H, J=1.74, 4.21 Hz, ArH); 8.185 (dd, 1H, J=1.74, 8.32 Hz, ArH); 7.823 (dd, 1H, J=1.12, 8.32 Hz, ArH); 7.743 (d, 1H, J=6.95 Hz, ArH); 7.555 (dd, 1H, J=7.18, 8.10 Hz, ArH); 7.455 (dd, 1H, J=4.21, 8.23 Hz, ArH); 5.065 (s, 2H, ArCH2).

Workup

  1. washwashed with 40 mL brine
  2. extractionThe aqueous layer was extracted with 20 mL EtOAc
  3. dry with materialThe combined organics were dried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customPurification by flash chromatography (60×220 mm silica gel, linear gradient 5-20% (EtOAc:hexane)

Sources & evidence

ORD record
ord-7fab8c64ffec467ebbf6e45201b05907
Source dataset
uspto-grants-2003_03
Patent number
US06534510B2

Reaction notes

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