Ammonium Chloride → 6-Amino-4-[(3-bromo-4-fluorophenyl)amino]-7-methoxy-3-quinolinecarbonitrile

HRID 548445Notes

Reaction equation

HRID 548445 reaction equation
[Br:1][C:2]1[CH:3]=[C:4]([NH:9][C:10]2[C:19]3[C:14](=[CH:15][C:16]([O:23][CH3:24])=[C:17]([N+:20]([O-])=O)[CH:18]=3)[N:13]=[CH:12][C:11]=2[C:25]#[N:26])[CH:5]=[CH:6][C:7]=1[F:8].[Cl-].[NH4+]>O.CO.C(OCC)(=O)C.[Fe]>[NH2:20][C:17]1[CH:18]=[C:19]2[C:14](=[CH:15][C:16]=1[O:23][CH3:24])[N:13]=[CH:12][C:11]([C:25]#[N:26])=[C:10]2[NH:9][C:4]1[CH:5]=[CH:6][C:7]([F:8])=[C:2]([Br:1])[CH:3]=1

Participants

7

Reactant 2

HCID 25517Ammonium ChlorideHCID 224666584-[(3-Bromo-4-fluorophenyl)amino]7-methoxy-6-nitro-quinoline-3-carbonitrile

Product 1

HCID 224666136-Amino-4-[(3-bromo-4-fluorophenyl)amino]-7-methoxy-3-quinolinecarbonitrileYield 78.4%

Reagents, catalysts & solvents 4

HCID 23925IronCatalystHCID 887MethanolSolventHCID 962WaterSolventHCID 8857Ethyl AcetateSolvent

Procedure

A mixture o f 2.9 g (6.95 mmol) of 4-[(3-bromo-4-fluorophenyl)amino]7-methoxy-6-nitro-quinoline-3-carbonitrile, 6.5 g (121.6 mmol) of ammonium chloride and 4.05 g (73 mmol) of iron in 50 ml of water and 50 ml of methanol for 6 hours. The mixture was diluted with hot ethyl acetate and the hot mixture was filtered. The filtration was washed with saturated sodium chloride solution then the organic layer was dried over sodium sulfate. The solvent was removed and the residue was chromatographed on silica gel eluting with mixture of ethyl acetate and methanol to give 2.11 g of light yellow solid: mass spectrum (electrospray, m/e): M+H 386.7 and 388.8.

Workup

  1. filtrationthe hot mixture was filtered
  2. filtrationThe filtration
  3. washwas washed with saturated sodium chloride solution
  4. dry with materialthe organic layer was dried over sodium sulfate
  5. customThe solvent was removed
  6. customthe residue was chromatographed on silica gel eluting with mixture of ethyl acetate and methanol

Sources & evidence

ORD record
ord-9160aa6b924c4dca883cf8715c4614e9
Source dataset
uspto-grants-2011_05
Patent number
USRE042376E1

Reaction notes

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