Benzoyl Peroxide → 1-Benzyl-5-bromo-2-bromomethyl-6-oxo-1,6-dihydro-pyridine-3-carboxylic acid methyl ester

HRID 919654Notes

Reaction equation

HRID 919654 reaction equation
[CH3:1][O:2][C:3]([C:5]1[CH:10]=[C:9]([Br:11])[C:8](=[O:12])[N:7]([CH2:13][C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[C:6]=1[CH3:20])=[O:4].[Br:21]N1C(=O)CCC1=O.C(OOC(=O)C1C=CC=CC=1)(=O)C1C=CC=CC=1>C(Cl)(Cl)(Cl)Cl>[CH3:1][O:2][C:3]([C:5]1[CH:10]=[C:9]([Br:11])[C:8](=[O:12])[N:7]([CH2:13][C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[C:6]=1[CH2:20][Br:21])=[O:4]

Participants

5

Reactant 3

HCID 7187Benzoyl PeroxideHCID 67184N-bromobutanimideHCID 120086331-Benzyl-5-bromo-2-methyl-6-oxo-1,6-dihydro-pyridine-3-carboxylic acid methyl ester

Product 1

HCID 682975521-Benzyl-5-bromo-2-bromomethyl-6-oxo-1,6-dihydro-pyridine-3-carboxylic acid methyl esterYield 82.4%

Reagents, catalysts & solvents 1

HCID 5943Carbon TetrachlorideSolvent

Procedure

A mixture of 1-benzyl-5-bromo-2-methyl-6-oxo-1,6-dihydro-pyridine-3-carboxylic acid methyl ester (0.28 g, 0.83 mmol), N-bromosuccinimide (0.163 g, 0.92 mmol), and benzoyl peroxide (20 mg, 0.083 mmol) in CCl4 (10 mL) was refluxed for 16 h. The solvent was evaporated in vacuo, and the residue was chromatographed (0-20% EtOAc/hexanes) to give 284 mg of the title compound as an amorphous solid. MS: (+) m/z 415.87 (M+1).

Workup

  1. temperaturewas refluxed for 16 h
  2. customThe solvent was evaporated in vacuo
  3. customthe residue was chromatographed (0-20% EtOAc/hexanes)

Sources & evidence

ORD record
ord-5a0951209510467e8b85f8ea79cbbc84
Source dataset
uspto-grants-2016_03
Patent number
US09271970B2

Reaction notes

Loading…