Triethylamine → 1-(4-Cyano-3-fluorobenzyl)-5-imidazolecarboxaldehyde

HRID 2306170Notes

Reaction equation

HRID 2306170 reaction equation
[C:1]([C:3]1[CH:16]=[CH:15][C:6]([CH2:7][N:8]2[C:12]([CH2:13][OH:14])=[CH:11][N:10]=[CH:9]2)=[CH:5][C:4]=1[F:17])#[N:2].C(N(CC)CC)C.CCOC(C)=O>CS(C)=O>[C:1]([C:3]1[CH:16]=[CH:15][C:6]([CH2:7][N:8]2[C:12]([CH:13]=[O:14])=[CH:11][N:10]=[CH:9]2)=[CH:5][C:4]=1[F:17])#[N:2]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 8857Ethyl AcetateHCID 185360621-(4-Cyano-3-fluorobenzyl)-5-(hydroxymethyl)imidazole

Product 1

HCID 114247081-(4-Cyano-3-fluorobenzyl)-5-imidazolecarboxaldehyde

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Procedure

To a solution of 1-(4-cyano-3-fluorobenzyl)-5-(hydroxymethyl) imidazole, as described above in Step F, (2.31 g, 10.0 mmol) in 20 mL of DMSO at 0° C. was added triethylamine (5.6 mL, 40 mmol), then SO3-pyridine complex (3.89 g, 25 mmol). After 30 minutes, the reaction was poured into EtOAc, washed with water and brine, dried (Na2SO4), filtered, and concentrated in vacuo to provide the aldehyde as a pale yellow powder.

Workup

  1. washwashed with water and brine
  2. dry with materialdried (Na2SO4)
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-ad6b1ea289df4d9aa8e99df86dd7cfe3
Source dataset
uspto-grants-2002_08
Patent number
US06441017B1

Reaction notes

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