Hydroxylamine → 6-Fluoro-1H-indole-3-carbonitrile

HRID 73322

Reaction equation

HRID 73322 reaction equation
[F:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6]([CH:11]=O)=[CH:7][NH:8]2)=[CH:4][CH:3]=1.[NH2:13]O.C([O-])=O.[Na+].O>C(O)=O>[F:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6]([C:11]#[N:13])=[CH:7][NH:8]2)=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 787HydroxylamineHCID 962WaterHCID 2629036-Fluoroindole-3-carboxaldehydeHCID 2723810Sodium Formate

Product 1

HCID 534187306-Fluoro-1H-indole-3-carbonitrileYield 59.9%

Reagents, catalysts & solvents 1

HCID 284Formic AcidSolvent

Conditions

Temperature
100 °C

Procedure

To a solution of 6-fluoro-1H-indole-3-carbaldehyde (0.97 g) in 90% formic acid (25 mL) were added hydroxylamine (0.65 g) and sodium formate (0.81 g), and this mixture was stirred at 100° C. for 3 hours. After cooling to ambient temperature, water was added to this reaction mixture and the precipitated solid was collected by filtration, and washed with water, dried to give the title compound (0.57 g).

Workup

  1. temperatureAfter cooling to ambient temperature
  2. filtrationthe precipitated solid was collected by filtration
  3. washwashed with water
  4. customdried

Sources & evidence

ORD record
ord-111bd519c84a4f52ada23e687209d777
Source dataset
uspto-grants-2014_09
Patent number
US08829040B2

Linked notes

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