HCID 22716473, compound → HCID 22716472, compound

HRID 1582864Notes

Reaction equation

HRID 1582864 reaction equation
[F:1][C:2]1[CH:3]=[C:4]([N+:18]([O-])=O)[CH:5]=[CH:6][C:7]=1[N:8]1[CH2:13][CH2:12][N:11]([CH2:14][CH2:15][F:16])[C:10](=[O:17])[CH2:9]1>C(OCC)(=O)C.CN(C=O)C>[NH2:18][C:4]1[CH:5]=[CH:6][C:7]([N:8]2[CH2:13][CH2:12][N:11]([CH2:14][CH2:15][F:16])[C:10](=[O:17])[CH2:9]2)=[C:2]([F:1])[CH:3]=1

Participants

4

Reactant 1

HCID 22716473HCID 22716473, compound

Product 1

HCID 22716472HCID 22716472, compound

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

3-Fluoro-4-(4-{2-fluoroethyl}-3-oxopiperazin-1-yl)nitrobenzene (4.35 g) is dissolved in a mixture of ethyl acetate (250 ml) and DMF (5 ml), and the solution flushed with argon. Palladium (10% on carbon, 200 mg) is added and the mixture hydrogenated under ambient pressure. After gas uptake had ceased, the mixture is filtered through celite and solvent removed. The residue is taken up in ethyl acetate, washed twice with water, dried over magnesium sulfate and the solvent is removed to give 5-amino-2-[4-(2-fluoroethyl)-3-oxopiperazin-1-yl]fluorobenzene which is used without further purification.

Workup

  1. customthe solution flushed with argon
  2. additionPalladium (10% on carbon, 200 mg) is added
  3. filtrationthe mixture is filtered through celite and solvent
  4. customremoved
  5. washwashed twice with water
  6. dry with materialdried over magnesium sulfate
  7. customthe solvent is removed

Sources & evidence

ORD record
ord-f53dc9be7ba94238a90f7ffdb5836722
Source dataset
uspto-grants-2004_05
Patent number
US06740652B2

Reaction notes

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