Dimethylamine → HCID 14390266, compound

HRID 2351670Notes

Reaction equation

HRID 2351670 reaction equation
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[N:16]([CH2:17][C:18]([OH:20])=O)[C:11]3=[N:12][CH:13]=[CH:14][CH:15]=[C:10]3[N:9]=2)=[CH:4][CH:3]=1.[C:21](N1C=CN=C1)([N:23]1C=CN=[CH:24]1)=O.CNC>O1CCCC1>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2[N:16]([CH2:17][C:18]([N:23]([CH3:24])[CH3:21])=[O:20])[C:11]3=[N:12][CH:13]=[CH:14][CH:15]=[C:10]3[N:9]=2)=[CH:6][CH:7]=1

Participants

5

Reactant 3

HCID 674DimethylamineHCID 682631,1'-CarbonyldiimidazoleHCID 143904564-bromophenyl-3H-imidazo[4,5-b]pyridine-3-acetic acid

Product 1

HCID 14390266HCID 14390266, compoundYield 63.4%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A suspension of 2-(4-bromophenyl)-3H-imidazo[4,5-b]pyridine- 3-acetic acid (5.5 g, 0.0166 mole), 1,1'-carbonyldiimidazole (2.7 g, 0.0166 mole), and anhydrous tetrahydrofuran (100 ml) was stirred at room temperature with a stream of nitrogen bubbling through it for 21/2 hours. The nitrogen flow was stopped and a solution of dimethylamine (0.5M in tetrahydrofuran) (66 ml) was added. The solution was stirred at room temperature, stoppered, for 16 hours. The reaction mixture was concentrated in vacuo and the residue triturated in water (100 ml) and filtered. The filter cake was recrystallized from ethanol to give 3.78 g (63%) of white needles, mp 224°-225° C.

Workup

  1. stirringThe solution was stirred at room temperature
  2. waitstoppered, for 16 hours
  3. concentrationThe reaction mixture was concentrated in vacuo
  4. customthe residue triturated in water (100 ml)
  5. filtrationfiltered
  6. customThe filter cake was recrystallized from ethanol

Sources & evidence

ORD record
ord-fe205046e4494305a2edce7226cd4165
Source dataset
uspto-grants-1989_10
Patent number
US04873251

Reaction notes

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