N,N-Dimethylethylenediamine → HCID 14390214, compound

HRID 622972Notes

Reaction equation

HRID 622972 reaction equation
[Cl: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]1[CH:27]=[CH:26][N:25]=[CH:24]1)=O.CN(C)CCN>C(Cl)Cl>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2[N:16]([CH2:17][C:18]([NH:25][CH2:26][CH2:27][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 66053N,N-DimethylethylenediamineHCID 682631,1'-CarbonyldiimidazoleHCID 143904574-chlorophenyl-3H-imidazo[4,5-b]pyridine-3-acetic acid

Product 1

HCID 14390214HCID 14390214, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

A stream of nitrogen was bubbled through a stirred suspension of 2-(4-chlorophenyl)-3H-imidazo[4,5-b]pyridine-3-acetic acid (4.50 g, 0.0157 mole), 1,1'-carbonyldiimidazole (2.54 g, 0.0157 mole) and anhydrous methylene chloride (100 ml) for 2 hrs at room temperature. A solution of N,N-dimethylethylenediamine (1.50 g, 0.0170 mole) in 10 ml of methylene chloride was added dropwise and the reaction mixture was stirred overnight at room temperature. The methylene chloride was washed with water (2×30 ml), 5% sodium hydroxide (2×30 ml), water (30 ml), dried over sodium sulfate and concentrated. The residue (4.5 g) was recrystallized from isopropyl alcohol to give 3.5 g (62%) of white flakes, mp 195°-196.5° C.

Workup

  1. washThe methylene chloride was washed with water (2×30 ml), 5% sodium hydroxide (2×30 ml), water (30 ml)
  2. dry with materialdried over sodium sulfate
  3. concentrationconcentrated
  4. customThe residue (4.5 g) was recrystallized from isopropyl alcohol
  5. customto give 3.5 g (62%) of white flakes, mp 195°-196.5° C.

Sources & evidence

ORD record
ord-8aa84eeef51c413d9a32633fc2d5fdbd
Source dataset
uspto-grants-1988_09
Patent number
US04772600

Reaction notes

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