Potassium Carbonate → 4-[1-(4-Chlorophenacyl)-1H-benzimidazol-2-yl]-furazan-3-yl-N-(3-hydroxypropyl)-amine

HRID 132007Notes

Reaction equation

HRID 132007 reaction equation
[NH:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[C:10]1[C:11]([NH:15][CH2:16][CH2:17][CH2:18][OH:19])=[N:12][O:13][N:14]=1.C(=O)([O-])[O-].[K+].[K+].[Cl:26][C:27]1[CH:36]=[CH:35][C:30]([C:31](=[O:34])[CH2:32]Br)=[CH:29][CH:28]=1>CN(C=O)C.C(OCC)(=O)C>[Cl:26][C:27]1[CH:36]=[CH:35][C:30]([C:31](=[O:34])[CH2:32][N:3]2[C:4]3[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=3[N:1]=[C:2]2[C:10]2[C:11]([NH:15][CH2:16][CH2:17][CH2:18][OH:19])=[N:12][O:13][N:14]=2)=[CH:29][CH:28]=1

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 68303p-Chlorophenacyl bromideHCID 1364137544-(1H-benzimidazol-2-yl)-furazan-3-yl-N-(3-hydroxypropyl)-amine

Product 1

HCID 674619604-[1-(4-Chlorophenacyl)-1H-benzimidazol-2-yl]-furazan-3-yl-N-(3-hydroxypropyl)-amine

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

A suspension of 4-(1H-benzimidazol-2-yl)-furazan-3-yl-N-(3-hydroxypropyl)-amine (0.70 g, 0.27 mmol), potassium carbonate (0.472 g, 3.42 mmol) and 4-chlorophenacyl bromide (0.069 g, 0.29 mmol) in DMF (5 ml) is stirred at room temperature for 16 hours. The reaction mixture is diluted with ethyl acetate, washed with water and dried over sodium sulphate. Filtration of the sodium sulphate, concentration of the filtrate under reduced pressure and chromatography of the residue on silicagel using hexane-ethyl acetate as eluent gives the title compound as a yellowish solid, m.p. 166-169° C.

Workup

  1. washwashed with water
  2. dry with materialdried over sodium sulphate
  3. filtrationFiltration of the sodium sulphate, concentration of the filtrate under reduced pressure and chromatography of the residue on silicagel

Sources & evidence

ORD record
ord-d3dde619be434593a6dd14a86323831a
Source dataset
uspto-grants-2008_06
Patent number
US07385061B2

Reaction notes

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