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Bromine → Methyl 2-amino-5-bromonicotinate

HRID 18254
Notes
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Reaction equation

HRID 18254 reaction equation
[Br:1]Br.[NH2:3][C:4]1[N:13]=[CH:12][CH:11]=[CH:10][C:5]=1[C:6]([O:8][CH3:9])=[O:7]>CC(O)=O>[NH2:3][C:4]1[N:13]=[CH:12][C:11]([Br:1])=[CH:10][C:5]=1[C:6]([O:8][CH3:9])=[O:7]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 2

HCID 24408BromineHCID 351633Methyl 2-aminopyridine-3-carboxylate

Product 1

HCID 2763453Methyl 2-amino-5-bromonicotinateYield 98.2%

Reagents, catalysts & solvents 1

HCID 176Acetic AcidSolvent

Procedure

Bromine (0.7 mL, 14 mmole) was added dropwise to a stirred solution of methyl 2-aminonicotinate (2.0 g, 13 mmole) in HOAc (50 mL). A suspension formed within 30 min. The reaction was allowed to stir at room temperature for 2 h, then was concentrated under vacuum. The residue was triturated with 1.0 N Na2CO3 (50 mL) and the solid was collected by suction filtration. The solid was washed with H2O (50 mL) and dried under vacuum to give the title compound (2.95 g, 98%) as a pale yellow solid: 1H NMR (400 MHz, CDCl3) δ 8.24 (d, J=2.5 Hz, 1 H), 8.23 (d, J=2.5 Hz, 1 H), 6.40 (br s, 2 H), 3.90 (s, 3 H).

On this pageParticipantsProcedureWorkupSources & evidenceReaction notes

Workup

  1. customA suspension formed within 30 min
  2. concentrationwas concentrated under vacuum
  3. customThe residue was triturated with 1.0 N Na2CO3 (50 mL)
  4. filtrationthe solid was collected by suction filtration
  5. washThe solid was washed with H2O (50 mL)
  6. customdried under vacuum

Sources & evidence

ORD record
ord-6b785971e87942358a742a706360fd1c
Source dataset
uspto-grants-2010_06
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07741339B2

Reaction notes

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