Sodium Hydroxide → HCID 5297144, compound

HRID 430996Notes

Reaction equation

HRID 430996 reaction equation
[CH3:1][N:2]1[C:6]2[CH:7]=[C:8]([N+:14]([O-])=O)[C:9]([N+:11]([O-])=O)=[CH:10][C:5]=2[N:4]=[C:3]1[CH3:17].[Sn].[OH-].[Na+]>Cl.O>[CH3:1][N:2]1[C:6]2[CH:7]=[C:8]([NH2:14])[C:9]([NH2:11])=[CH:10][C:5]=2[N:4]=[C:3]1[CH3:17]

Participants

6

Reactant 3

HCID 14798Sodium HydroxideHCID 27292731,2-dimethyl-5,6-dinitrobenzimidazoleHCID 5352426Tin atom

Product 1

HCID 5297144HCID 5297144, compound

Reagents, catalysts & solvents 2

HCID 313Hydrochloric AcidSolventHCID 962WaterSolvent

Conditions

Temperature
10 °C

Procedure

1,2-Dimethyl-5,6-dinitrobenzimidazole was reduced with tin in hydrochloric acid. The solution obtained from the reduction was diluted with water, cooled to 10° C., and treated with 40% NaOH. The precipitate which formed was filtered, washed with water and recrystallized from alcohol to yield 1,2 dimethly-5,6 diaminobenzimidazole.

Workup

  1. customThe solution obtained from the reduction
  2. customThe precipitate which formed
  3. filtrationwas filtered
  4. washwashed with water
  5. customrecrystallized from alcohol

Sources & evidence

ORD record
ord-1852346d4b8545c09873d4a052afba8c
Source dataset
uspto-grants-2003_12
Patent number
US06656940B2

Reaction notes

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