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Sodium Iodide → 2,3-Dimethyl-8-(2,6-dimethylbenzylamino)imidazo[1,2-a]pyridine

HRID 1386058
Notes
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Reaction equation

HRID 1386058 reaction equation
[NH2:1][C:2]1[C:3]2[N:4]([C:8]([CH3:12])=[C:9]([CH3:11])[N:10]=2)[CH:5]=[CH:6][CH:7]=1.C(=O)([O-])[O-].[Na+].[Na+].[I-].[Na+].[CH3:21][C:22]1[CH:29]=[CH:28][CH:27]=[C:26]([CH3:30])[C:23]=1[CH2:24]Cl>CC(C)=O>[CH3:11][C:9]1[N:10]=[C:3]2[C:2]([NH:1][CH2:24][C:23]3[C:26]([CH3:30])=[CH:27][CH:28]=[CH:29][C:22]=3[CH3:21])=[CH:7][CH:6]=[CH:5][N:4]2[C:8]=1[CH3:12]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 5238Sodium IodideHCID 10340Sodium CarbonateHCID 2211542,6-Dimethylbenzyl ChlorideHCID 218739802,3-Dimethylimidazo[1,2-a]pyridin-8-amine

Product 1

HCID 226726292,3-Dimethyl-8-(2,6-dimethylbenzylamino)imidazo[1,2-a]pyridineYield 57.7%

Reagents, catalysts & solvents 1

HCID 180
Acetone
Solvent

Procedure

A mixture of 8-amino-2,3-dimethylimidazo[1,2-a]pyridine (0.7 g, 4.34 mmol), sodium carbonate (2.0 g), sodium iodide (0.3 g), 2,6-dimethylbenzylchloride (0.671 g, 4.34 mmol) and acetone (30 ml) was stirred overnight. The reaction mixture was filtered and the solvent was removed in vacuo. The residue was dissolved in methylene chloride and washed with aqueous NaHCO3. The organic layer was separated and the solvent was evaporated. The crude product was purified by flash chromatography eluting with CH2Cl2/MeOH to give 0.7 g of the title compound.

Workup

  1. filtrationThe reaction mixture was filtered
  2. customthe solvent was removed in vacuo
  3. dissolutionThe residue was dissolved in methylene chloride
  4. washwashed with aqueous NaHCO3
  5. customThe organic layer was separated
  6. customthe solvent was evaporated
  7. customThe crude product was purified by flash chromatography
  8. washeluting with CH2Cl2/MeOH

Sources & evidence

ORD record
ord-0582edeafbca4a12bf1a449d54ea7c1d
Source dataset
uspto-grants-2001_07
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06265415B1

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes