Benzoyl Peroxide → HCID 68297738, compound

HRID 919981Notes

Reaction equation

HRID 919981 reaction equation
[CH3:1][O:2][C:3]([C:5]1[CH:10]=[C:9]([Br:11])[C:8](=[O:12])[N:7]([C@H:13]([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[CH3:14])[C:6]=1[CH3:21])=[O:4].[Br:22]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]([C@H:13]([C:15]2[CH:16]=[CH:17][CH:18]=[CH:19][CH:20]=2)[CH3:14])[C:6]=1[CH2:21][Br:22])=[O:4]

Participants

5

Reactant 3

HCID 7187Benzoyl PeroxideHCID 67184N-bromobutanimideHCID 86714163HCID 86714163, compound

Product 1

HCID 68297738HCID 68297738, compoundYield 93%

Reagents, catalysts & solvents 1

HCID 5943Carbon TetrachlorideSolvent

Procedure

A mixture of (S)-5-bromo-2-methyl-6-oxo-1-(1-phenyl-ethyl)-1,6-dihydro-pyridine-3-carboxylic acid methyl ester (2.34 g, 6.69 mmol), N-bromosuccinimide (1.31 g, 7.35 mmol), and benzoyl peroxide (0.16 g, 0.669 mmol) in CCl4 (70 mL) was refluxed for 16 h. After cooling the mixture to r.t., the precipitate was removed by filtration. The filtrate was evaporated in vacuo, and the residue was chromatographed (0-25% EtOAc/hexanes) to give 2.67 g of the title compound as a white solid. MS: (+) m/z 452.06 (M+Na).

Workup

  1. temperaturewas refluxed for 16 h
  2. customthe precipitate was removed by filtration
  3. customThe filtrate was evaporated in vacuo
  4. customthe residue was chromatographed (0-25% EtOAc/hexanes)

Sources & evidence

ORD record
ord-1f2ef80242084abe8aaba8e40348691e
Source dataset
uspto-grants-2016_03
Patent number
US09271970B2

Reaction notes

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