Ammonium Hydroxide → 5-Bromo-2-methylbenzamide

HRID 1485202Notes

Reaction equation

HRID 1485202 reaction equation
[Br:1][C:2]1[CH:3]=[CH:4][C:5]([CH3:11])=[C:6]([CH:10]=1)[C:7](O)=[O:8].C[N:13](C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C.[NH4+].[OH-]>CN(C=O)C.O>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([CH3:11])=[C:6]([CH:10]=1)[C:7]([NH2:13])=[O:8]

Participants

7

Reactant 4

HCID 14923Ammonium HydroxideHCID 81531DiisopropylethylamineHCID 3460045-Bromo-2-methylbenzoic acidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)

Product 1

HCID 206167705-Bromo-2-methylbenzamide

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

To a mixture of 5-bromo-2-methylbenzoic acid (0.538 g, 2.50 mmol) and HATU (1.289 g, 3.390 mmol) in DMF (8 mL) was added DIPEA (0.800 mL, 4.59 mmol). The mixture was stirred for 10 minutes before addition of NH4OH (0.50 mL) and then left stirring for 16 hours at room temperature. The mixture was poured in to water and cooled at 0° C. for 20 minutes before collecting the resulting precipitate via vacuum filtration to give the title compound (I69) (0.292 g, 55%); 1H NMR (400 MHz, CDCl3) δ 7.58 (d, J=2.1 Hz, 1H), 7.45 (dd, J=8.2, 2.1 Hz, 1H), 7.12 (d, J=8.2 Hz, 1H), 5.68 (bs, 2H), 2.44 (s, 3H). LCMS Method C: rt 4.89 min; m/z 214, 216 [M+H]+.

Workup

  1. waitleft
  2. temperaturecooled at 0° C. for 20 minutes
  3. custombefore collecting the resulting precipitate
  4. filtrationvia vacuum filtration

Sources & evidence

ORD record
ord-0fab4f09c76847b8976b88972530a661
Source dataset
uspto-grants-2016_08
Patent number
US09421205B2

Reaction notes

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