Nitrogen → HCID 87167412, compound
Reaction equation
N#N.[Br:3][C:4]1[C:11]([F:12])=[CH:10][C:7]([CH2:8][OH:9])=[CH:6][C:5]=1[F:13].CCN(CC)CC.[S:21](Cl)([CH3:24])(=[O:23])=[O:22]>C(Cl)Cl.CN(C1C=CN=CC=1)C>[CH3:24][S:21]([O:9][CH2:8][C:7]1[CH:10]=[C:11]([F:12])[C:4]([Br:3])=[C:5]([F:13])[CH:6]=1)(=[O:23])=[O:22]Participants
Conditions
- Temperature
- 0 °C
Procedure
In a flame dried round-bottomed flask equipped with a magnetic stir bar and under inert atmosphere (N2), a solution of 4-bromo-3,5-difluorobenzyl alcohol (100 mg, 0.45 mmol) in dry CH2Cl2 (3 mL) was treated at 0° C. with Et3N (0.081 mL, 0.58 mmol) followed by DMAP (5 mg, 0.045 mmol) and Ms-Cl (0.037 mL, 0.47 mmol). After stirring at 0° C. for 0.5 h and at rt for 0.5 h, the reaction was quenched with water (2 mL). The org. layer was dried over MgSO4, filtered, and the solvents were removed under reduced pressure to give crude (4-bromo-3,5-difluorophenyl)methyl methanesulfonate as a yellow oil. This material was dissolved in dry DMF (3 mL) and treated with NaN3 (29 mg, 0.45 mmol) at 80° C. until completion of the reaction. The reaction mixture was then cooled down to rt and partitioned between EA and water. The layers were separated and the org. layer dried over MgSO4, filtered and concentrated under reduced pressure to give crude 1-(azidomethyl)-4-bromo-3,5-difluorobenzene as a yellow oil. LC-MS-conditions 07: tR=0.90 min.
Workup
- customthe reaction was quenched with water (2 mL)
- dry with materiallayer was dried over MgSO4
- filtrationfiltered
- customthe solvents were removed under reduced pressure
Sources & evidence
- ORD record
- ord-68c7ad8bb63c4c809f6d332f6ec93da3
- Source dataset
- uspto-grants-2013_10
- Patent number
- US08563714B2
Reaction notes
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