Hydrogen Peroxide → 2-(2-Fluorophenyl)oxazolo[4,5-b]pyridine 4-oxide

HRID 259539Notes

Reaction equation

HRID 259539 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[O:9][C:10]2[C:11]([N:16]=1)=[N:12][CH:13]=[CH:14][CH:15]=2.[OH:17]O>C(O)(=O)C>[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[O:9][C:10]2[C:11]([N:16]=1)=[N+:12]([O-:17])[CH:13]=[CH:14][CH:15]=2

Participants

4

Reactant 2

HCID 784Hydrogen PeroxideHCID 1971814Oxazolo(4,5-b)pyridine, 2-(2-fluorophenyl)-

Product 1

HCID 227547722-(2-Fluorophenyl)oxazolo[4,5-b]pyridine 4-oxide

Reagents, catalysts & solvents 1

HCID 176Acetic AcidSolvent

Procedure

A solution of 1 g. of 2-(2-fluorophenyl)oxazolo[4,5-b]pyridine (from Example 6) in 10 ml. of acetic acid was treated with 2 ml. of 30% hydrogen peroxide and heated on the steam bath for 16 hours. After cooling the mixture was diluted with ice-water. The precipitate was collected and recrystallized from dioxane-ether to give 2-(2-fluorophenyl)oxazolo [4,5-b]pyridine-4-oxide, m.p. 214°-216° C.

Workup

  1. temperatureAfter cooling the mixture
  2. customThe precipitate was collected
  3. customrecrystallized from dioxane-ether

Sources & evidence

ORD record
ord-5aa248c2ceb74eabb35f3a15176dd4d9
Source dataset
uspto-grants-1977_07
Patent number
US04038396

Reaction notes

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