Carbon Tetrachloride → 2-Bromo-5-bromomethylpyridine

HRID 2421771Notes

Reaction equation

HRID 2421771 reaction equation
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([CH3:8])=[CH:4][N:3]=1.C(Cl)(Cl)(Cl)Cl.C1C(=O)N([Br:21])C(=O)C1>C(OOC(=O)C1C=CC=CC=1)(=O)C1C=CC=CC=1>[Br:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][Br:21])=[CH:4][N:3]=1

Participants

5

Reactant 3

HCID 5943Carbon TetrachlorideHCID 67184N-bromobutanimideHCID 5642162-Bromo-5-methylpyridine

Product 1

HCID 64246602-Bromo-5-bromomethylpyridineYield 105.4%

Reagents, catalysts & solvents 1

HCID 7187Benzoyl PeroxideCatalyst

Conditions

Temperature
0 °C

Procedure

To a solution of 2-Bromo-5-methylpyridine (3.1 g, 17.4 mmol) in carbon tetrachloride (40 mL, 400 mmol) was added benzoyl peroxide (230 mg, 950 μmol) and NBS (3.4 g, 19.2 mmol). The resulting mixture was heated at reflux overnight. The mixture was cooled at 0° C. and the NBS was removed by filtration. The filtrate was concentrated to yield 2-bromo-5-bromomethylpyridine (4.6 g), which was used directly in the next step.

Workup

  1. temperatureThe resulting mixture was heated
  2. temperatureat reflux overnight
  3. customthe NBS was removed by filtration
  4. concentrationThe filtrate was concentrated

Sources & evidence

ORD record
ord-6785753a6c8441c2844e9818aede7c13
Source dataset
uspto-grants-2011_06
Patent number
US07956054B2

Reaction notes

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