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Hydrochloric Acid → 2-(2,6-Dichloro-phenyl)-3H-benzoimidazole-5-carboxylic acid

HRID 1360733
Notes
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Reaction equation

HRID 1360733 reaction equation
C[O:2][C:3]([C:5]1[CH:21]=[CH:20][C:8]2[N:9]=[C:10]([C:12]3[C:17]([Cl:18])=[CH:16][CH:15]=[CH:14][C:13]=3[Cl:19])[NH:11][C:7]=2[CH:6]=1)=[O:4].[OH-].[Na+].Cl>CO.C1COCC1>[Cl:19][C:13]1[CH:14]=[CH:15][CH:16]=[C:17]([Cl:18])[C:12]=1[C:10]1[NH:11][C:7]2[CH:6]=[C:5]([C:3]([OH:4])=[O:2])[CH:21]=[CH:20][C:8]=2[N:9]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 669663062-(2,6-Dichloro-phenyl)-3H-benzoimidazole-5-carboxylic acid methyl ester

Product 1

HCID 433492922-(2,6-Dichloro-phenyl)-3H-benzoimidazole-5-carboxylic acid

Reagents, catalysts & solvents 1

HCID 21899815MeOH tetrahydrofuranSolvent

Procedure

To a solution of 2-(2,6-dichlorophenyl)-3H-benzoimidazole-5-carboxylic acid methyl ester (5.8 g) in 40 mL of MeOH/THF (1:1) was added 1N NaOH (20 mL). The mixture was stirred at RT for 18 h then 1N HCl was added until pH 3. The resulting precipitate was filtered, washed with water and dried under reduced pressure to give the title compound.

Workup

  1. filtrationThe resulting precipitate was filtered
  2. washwashed with water
  3. customdried under reduced pressure

Sources & evidence

ORD record
ord-187f64f8474244f4b37d6cf2004e6838
Source dataset
uspto-grants-2011_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07879850B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes