N-bromobutanimide → [2-Bromo-4-(2-oxo-hexahydro-pyrimidin-5-yl)-phenyl]-carbamic acid tert-butyl ester

HRID 447970Notes

Reaction equation

HRID 447970 reaction equation
[C:1]([O:5][C:6](=[O:21])[NH:7][C:8]1[CH:13]=[CH:12][C:11]([CH:14]2[CH2:19][NH:18][C:17](=[O:20])[NH:16][CH2:15]2)=[CH:10][CH:9]=1)([CH3:4])([CH3:3])[CH3:2].C1C(=O)N([Br:29])C(=O)C1>CC#N>[C:1]([O:5][C:6](=[O:21])[NH:7][C:8]1[CH:9]=[CH:10][C:11]([CH:14]2[CH2:19][NH:18][C:17](=[O:20])[NH:16][CH2:15]2)=[CH:12][C:13]=1[Br:29])([CH3:4])([CH3:2])[CH3:3]

Participants

4

Reactant 2

HCID 67184N-bromobutanimideHCID 59771203[4-(2-Oxo-hexahydro-pyrimidin-5-yl)-phenyl]-carbamic acid tert-butyl ester

Product 1

HCID 59771302[2-Bromo-4-(2-oxo-hexahydro-pyrimidin-5-yl)-phenyl]-carbamic acid tert-butyl esterYield 32%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

To a solution of [4-(2-oxo-hexahydro-pyrimidin-5-yl)-phenyl]-carbamic acid tert-butyl ester (as prepared in the previous step, 29 mg, 0.10 mmol) in CH3CN (1 mL), NBS (19.5 mg, 0.100 mmol) was added. The resulting mixture was stirred overnight and concentrated to half the volume. The resulting precipitate was collected by filtration to obtain the title compound (12 mg, 32%): Mass spectrum (ESI, m/z): Calcd. for C15H20BrN3O3, 370.0 and 372.0 (M+H), found 370.1 and 372.1.

Workup

  1. concentrationconcentrated to half the volume
  2. filtrationThe resulting precipitate was collected by filtration

Sources & evidence

ORD record
ord-50ac91ba81734ce18bd5e281adbf613e
Source dataset
uspto-grants-2013_07
Patent number
US08481564B2

Reaction notes

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