Hydrazine → HCID 14126715, compound

HRID 569915Notes

Reaction equation

HRID 569915 reaction equation
[NH2:1][NH2:2].O[CH:4]=[C:5]1[C:15](=O)[C:10]2[CH:11]=[N:12][N:13]([CH3:14])[C:9]=2[CH2:8][CH2:7][CH2:6]1>CO>[CH3:14][N:13]1[C:9]2[CH2:8][CH2:7][CH2:6][C:5]3[CH:4]=[N:2][NH:1][C:15]=3[C:10]=2[CH:11]=[N:12]1

Participants

4

Reactant 2

HCID 9321HydrazineHCID 57144783HCID 57144783, compound

Product 1

HCID 14126715HCID 14126715, compoundYield 96%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

Hydrazine (0.5 ml) was added slowly to a warm solution of 3 g of 5,6,7,8-tetrahydro-5-hydroxymethylene-1-methyl-4(1H)-cycloheptapyrazolone in 90 ml of methanol. The reaction was heated at reflux for 30 minutes and the solvent was removed under reduced pressure. The residue was triturated in warm ether to give 4,5,6,7-tetrahydro-7-methyl-1H-cyclohepta[1,2-c:3,4 c']dipyrazole as a tan powder (96% yield) melting at about 153°-155° C.

Workup

  1. temperatureThe reaction was heated
  2. temperatureat reflux for 30 minutes
  3. customthe solvent was removed under reduced pressure
  4. customThe residue was triturated in warm ether

Sources & evidence

ORD record
ord-ce0b154f39b64a84acd2f337a9ed5267
Source dataset
uspto-grants-1988_03
Patent number
US04734430

Reaction notes

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