1,2-Dichloroethane → HCID 178526864, compound

HRID 1012139Notes

Reaction equation

HRID 1012139 reaction equation
[N:1]1([CH2:7][C:8]2[CH:9]=[C:10]([NH2:15])[C:11]([NH2:14])=[CH:12][CH:13]=2)[CH2:6][CH2:5][O:4][CH2:3][CH2:2]1.[N+:16]([C:19]1[C:20]([C:24](O)=O)=[N:21][NH:22][CH:23]=1)([O-:18])=[O:17].C(Cl)CCl.C1C=CC2N(O)N=NC=2C=1>CN(C=O)C.CC(O)=O>[N:1]1([CH2:7][C:8]2[CH:13]=[CH:12][C:11]3[NH:14][C:24]([C:20]4[C:19]([N+:16]([O-:18])=[O:17])=[CH:23][NH:22][N:21]=4)=[N:15][C:10]=3[CH:9]=2)[CH2:6][CH2:5][O:4][CH2:3][CH2:2]1

Participants

7

Reactant 4

HCID 111,2-DichloroethaneHCID 757711-HydroxybenzotriazoleHCID 251933094-(Morpholinomethyl)benzene-1,2-diamineHCID 178524956HCID 178524956, compound

Product 1

HCID 178526864HCID 178526864, compound

Reagents, catalysts & solvents 2

HCID 176Acetic AcidSolventHCID 6228DimethylformamideSolvent

Procedure

A mixture of 4-morpholin-4-ylmethyl-benzene-1,2-diamine (2.30 g, 11.1 mmol), 4-nitro-1H-pyrazole-3-carboxylic acid (1.57 g, 10.0 mmol), EDC (2.13 g, 11.1 mmol) and HOBt (1.50 g, 11.1 mmol) in dry DMF (25 ml) was stirred at ambient temperature for 24 h. The mixture was reduced in vacuo and the crude residue dissolved in AcOH (40 ml) and heated at reflux for 3 h. The solvent was removed in vacuo and the residue was purified by flash column chromatography eluting with 0-20% MeOH in EtOAc to give 5-morpholin-4-ylmethyl-2-(4-nitro-1H-pyrazol-3-yl)1H-benzimidazole as a yellow solid. (1.0 g, 61%). (LC/MS: Rt 1.83, [M+H]+ 329).

Workup

  1. temperatureheated
  2. temperatureat reflux for 3 h
  3. customThe solvent was removed in vacuo
  4. customthe residue was purified by flash column chromatography
  5. washeluting with 0-20% MeOH in EtOAc

Sources & evidence

ORD record
ord-70f98415a9cf47188dc1dc4cff406721
Source dataset
uspto-grants-2011_07
Patent number
US07977477B2

Reaction notes

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