Water → 5-Bromo-2-(2H-tetrazol-5-yl)pyridine

HRID 1160189Notes

Reaction equation

HRID 1160189 reaction equation
[C:1]([C:3]1[CH:8]=[CH:7][C:6]([Br:9])=[CH:5][N:4]=1)#[N:2].[N-:10]=[N+:11]=[N-:12].[Na+].[Cl-].[NH4+].O>CN(C)C=O>[NH:10]1[C:1]([C:3]2[CH:8]=[CH:7][C:6]([Br:9])=[CH:5][N:4]=2)=[N:2][N:12]=[N:11]1

Participants

6

Reactant 4

HCID 962WaterHCID 25517Ammonium ChlorideHCID 33557Sodium AzideHCID 8171545-Bromopyridine-2-carbonitrile

Product 1

HCID 234386835-Bromo-2-(2H-tetrazol-5-yl)pyridineYield 85%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
110 °C

Procedure

10 g of 2-cyano-5-bromopyridine prepared in the Preparation example 5 was dissolved in 100 ml of dimethylformamide, 5.33 g of sodiumazide, and 4.4 g of ammonium chloride were added to the solution at room temperature, and the solution was stirred at the temperature of 110° C. for 3 hours for reaction. The reaction mixture was added with water and then was extracted with ethyl acetate. The organic layer, thus separated, was washed with brine, dehydrated, filtrated and concentrated in vacuo thereby to obtain 10.5 g of the title compound. Yield 85%.

Workup

  1. extractionwas extracted with ethyl acetate
  2. customThe organic layer, thus separated
  3. washwas washed with brine
  4. filtrationfiltrated
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-bf33a5f7539547dfa4ed1db167c346db
Source dataset
uspto-grants-2010_10
Patent number
US07816379B2

Reaction notes

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