Sodium Hydroxide → 4-Amino-8-methoxy-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile

HRID 61855Notes

Reaction equation

HRID 61855 reaction equation
Br[C:2]1[C:3]([C:24]#[N:25])=[CH:4][CH:5]=[C:6]2[C:14]=1[NH:13][C:12]1[C:11]([CH3:16])([CH3:15])[C:10]3[CH:17]=[C:18]([O:21][CH3:22])[CH:19]=[CH:20][C:9]=3[C:8](=[O:23])[C:7]2=1.[N-:26]=[N+]=[N-].[Na+].CN[C@H]1CCCC[C@@H]1NC.O=C1O[C@H]([C@H](CO)O)C([O-])=C1O.[Na+].[OH-].[Na+]>C(O)C.[Cu](I)I.O>[NH2:26][C:2]1[C:3]([C:24]#[N:25])=[CH:4][CH:5]=[C:6]2[C:14]=1[NH:13][C:12]1[C:11]([CH3:16])([CH3:15])[C:10]3[CH:17]=[C:18]([O:21][CH3:22])[CH:19]=[CH:20][C:9]=3[C:8](=[O:23])[C:7]2=1

Participants

9

Reactant 5

HCID 14798Sodium HydroxideHCID 33557Sodium AzideHCID 13822957(1S,2S)-(+)-N,N'-Dimethylcyclohexane-1,2-diamineHCID 23667548Sodium AscorbateHCID 668344664-Bromo-8-methoxy-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile

Product 1

HCID 668343534-Amino-8-methoxy-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrileYield 27%

Reagents, catalysts & solvents 3

HCID 83717Copper iodideCatalystHCID 702EthanolSolventHCID 962WaterSolvent

Procedure

Under nitrogen atmosphere, 4-bromo-8-methoxy-6,6-dimethyl-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile (Compound U5, 25.0 mg, 63.25 μmol), copper iodide (2.41 mg, 12.65 μmol), sodium azide (20.6 mg, 316.3 μmol), (1S,2S)—N,N′-dimethyl-cyclohexane-1,2-diamine (2.70 mg, 18.98 μmol), and sodium ascorbate (1.25 mg, 6.325 μmol) were dissolved in ethanol (0.70 mL) and water (0.30 mL) and the mixture was stirred at 100° C. for 2 hr. The reaction solution was poured into aqueous solution of sodium hydroxide (1 M), extracted with ethyl acetate, washed with water and saturated brine, dried over sodium sulfate, and then filtered. The residues obtained after concentration under reduced pressure were purified by silica gel column chromatography (methanol/dichloromethane) to obtain the title compound (5.6 mg, 27%).

Workup

  1. extractionextracted with ethyl acetate
  2. washwashed with water and saturated brine
  3. dry with materialdried over sodium sulfate
  4. filtrationfiltered
  5. customThe residues obtained
  6. concentrationafter concentration under reduced pressure
  7. customwere purified by silica gel column chromatography (methanol/dichloromethane)

Sources & evidence

ORD record
ord-46c5de0c003746e0a7059e09420978a8
Source dataset
uspto-grants-2016_09
Patent number
US09440922B2

Reaction notes

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