HCID 178526284, compound → HCID 178516802, compound

HRID 1679101Notes

Reaction equation

HRID 1679101 reaction equation
[C:1]1([N:7]2[N:11]=[C:10]([OH:12])[CH:9]=[N+:8]2[O-])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1>C(O)(=O)C.[Zn]>[C:1]1([N:7]2[N:11]=[C:10]([OH:12])[CH:9]=[N:8]2)[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1

Participants

4

Reactant 1

HCID 178526284HCID 178526284, compound

Product 1

HCID 178516802HCID 178516802, compound

Reagents, catalysts & solvents 2

HCID 23994ZincCatalystHCID 176Acetic AcidSolvent

Procedure

88.5 g of 2-phenyl-4-hydroxy-1,2,3-triazole-1-oxide of formula I (R = phenyl) is stirred in 1000 ml of glacial acetic acid, with ice cooling, with 75 g of zinc dust. After completion of the reaction, the filtrate is filtered off and concentrated by evaporation to dryness. The residue is stirred into water, filtered off under suction, washed with water and again filtered off under suction.

Workup

  1. customAfter completion of the reaction
  2. filtrationthe filtrate is filtered off
  3. concentrationconcentrated by evaporation to dryness
  4. filtrationfiltered off under suction
  5. washwashed with water
  6. filtrationagain filtered off under suction

Sources & evidence

ORD record
ord-2b441d6f665c42f6860fb51ee5c1d48b
Source dataset
uspto-grants-1978_03
Patent number
US04079063

Reaction notes

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