Ethyl Acetate → methyl 4-(1-(2-methoxyethyl)-1H-benzo[d]imidazol-2-ylamino)benzoate

HRID 2273597Notes

Reaction equation

HRID 2273597 reaction equation
CN(C)CCCN=C=NCC.[CH3:12][O:13][CH2:14][CH2:15][NH:16][C:17]1[C:18]([NH2:23])=[CH:19][CH:20]=[CH:21][CH:22]=1.[N:24]([C:27]1[CH:36]=[CH:35][C:30]([C:31]([O:33][CH3:34])=[O:32])=[CH:29][CH:28]=1)=[C:25]=S.C(OCC)(=O)C>O1CCCC1>[CH3:12][O:13][CH2:14][CH2:15][N:16]1[C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=2[N:23]=[C:25]1[NH:24][C:27]1[CH:36]=[CH:35][C:30]([C:31]([O:33][CH3:34])=[O:32])=[CH:29][CH:28]=1

Participants

6

Reactant 4

HCID 8857Ethyl AcetateHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 1380024-Methoxycarbonylphenyl isothiocyanateHCID 102614521-N-(2-methoxyethyl)benzene-1,2-diamine

Product 1

HCID 67775781methyl 4-(1-(2-methoxyethyl)-1H-benzo[d]imidazol-2-ylamino)benzoateYield 68.9%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

N-(3-Dimethylaminopropyl)-N′-ethylcarbodiimide (EDC, 791 mg) is added to a solution of N1-(2-methoxyethyl)benzene-1,2-diamine (311 mg, 1.87 mmol) and methyl 4-isothiocyanatobenzoate (328 mg, 1.70 mmol) in tetrahydrofuran. The reaction may be heated to reflux for 2 hr and cooled to room temperature. The mixture may be diluted in an appropriate solvent such as ethyl acetate, filtered and concentrated. The residue may be purified by any appropriate method, including Biotage column chromatography to give methyl 4-(1-(2-methoxyethyl)-1H-benzo[d]imidazol-2-ylamino)benzoate (381 mg).

Workup

  1. customThe reaction
  2. temperaturemay be heated
  3. temperatureto reflux for 2 hr
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe residue may be purified by any appropriate method

Sources & evidence

ORD record
ord-60b3dfa705444ea9bde0239dfa76aafa
Source dataset
uspto-grants-2015_09
Patent number
US09125901B2

Reaction notes

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