Hydrazoic acid → HCID 178420316, compound

HRID 2057894

Reaction equation

HRID 2057894 reaction equation
[CH2:1]([N:8]1[CH:12]=[CH:11][N:10]=[C:9]1[CH:13]=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[Cl-].[NH4+].[N-]=[N+]=[N-].[Na+].C(N1C=CN=C1C#N)C1C=CC=CC=1.N=[N+]=[N-].[NH:38]1C=[N:41][N:40]=[N:39]1>CN(C)C=O.O>[CH2:1]([N:8]1[CH:12]=[CH:11][N:10]=[C:9]1[C:13]1[NH:41][N:40]=[N:39][N:38]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

9

Reactant 6

HCID 24530Hydrazoic acidHCID 25517Ammonium ChlorideHCID 33557Sodium AzideHCID 1390821-benzyl-1H-imidazole-2-carbaldehydeHCID 110304751H-Imidazole-2-carbonitrile, 1-(phenylmethyl)-HCID 178418441HCID 178418441, compound

Product 1

HCID 178420316HCID 178420316, compound

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

Obtained by reacting 9.3 g (0.05 mol) of 1-benzyl-2-formylimidazole (see Liebigs Ann. Chem. 718 (1968) pp. 249-259) with 8.0 g (0.15 mol) of ammonium chloride and 9.8 g (0.15 mol) of sodium azide in 50 ml of dimethylformamide at 120°-130° C. The isolation of the 1-benzyl-2-cyanoimidazole intermediate (obtained by Schmidt-rearrangement) may be omitted, since this compound adds excess hydrazoic acid to the tetrazole in situ. After 20 hours, it is cooled, and 500 ml of water are added, the precipitate formed filtered off and recrystallised several times from dimethylformamide. M.p. 274°-275° C.

Workup

  1. customObtained
  2. customat 120°-130° C
  3. temperatureit is cooled
  4. customthe precipitate formed
  5. filtrationfiltered off
  6. customrecrystallised several times from dimethylformamide

Sources & evidence

ORD record
ord-1a0a0e1e24884fef88d6adf35ec1d162
Source dataset
uspto-grants-1980_07
Patent number
US04213986

Linked notes

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