4-(2-methyl-3-(naphthalen-1-ylmethyl)-7-nitro-3H-benzo[d]imidazol-5-yl)morpholine → 2-methyl-6-morpholino-1-(naphthalen-1-ylmethyl)-1H-benzo[d]imidazol-4-amine

HRID 1749560Notes

Reaction equation

HRID 1749560 reaction equation
[CH3:1][C:2]1[N:3]([CH2:20][C:21]2[C:30]3[C:25](=[CH:26][CH:27]=[CH:28][CH:29]=3)[CH:24]=[CH:23][CH:22]=2)[C:4]2[CH:10]=[C:9]([N:11]3[CH2:16][CH2:15][O:14][CH2:13][CH2:12]3)[CH:8]=[C:7]([N+:17]([O-])=O)[C:5]=2[N:6]=1>C(O)C.O.[Fe]>[CH3:1][C:2]1[N:3]([CH2:20][C:21]2[C:30]3[C:25](=[CH:26][CH:27]=[CH:28][CH:29]=3)[CH:24]=[CH:23][CH:22]=2)[C:4]2[CH:10]=[C:9]([N:11]3[CH2:16][CH2:15][O:14][CH2:13][CH2:12]3)[CH:8]=[C:7]([NH2:17])[C:5]=2[N:6]=1

Participants

5

Reactant 1

HCID 669768494-(2-methyl-3-(naphthalen-1-ylmethyl)-7-nitro-3H-benzo[d]imidazol-5-yl)morpholine

Product 1

HCID 669767452-methyl-6-morpholino-1-(naphthalen-1-ylmethyl)-1H-benzo[d]imidazol-4-amineYield 97%

Reagents, catalysts & solvents 3

HCID 23925IronCatalystHCID 702EthanolSolventHCID 962WaterSolvent

Procedure

A mixture of 4-(2-methyl-3-(naphthalen-1-ylmethyl)-7-nitro-3H-benzo[d]imidazol-5-yl)morpholine (804 mg), prepared as described in Example 2, iron powder (168 mg) and FeSO4 (84 mg) in ethanol (30 mL) and H2O (30 mL) was stirred at reflux temperature overnight. The mixture was cooled to room temperature and the solvent was removed in-vacuo. The residue was dissolved in DCM and filtered. The filtrate was then washed with brine, dried over anhydrous Na2SO4, filtered and concentrated in-vacuo to afford the desired product as a solid (720 mg, 97%). 1H NMR (300 MHz, DMSO-d6) δ ppm 2.33 (s, 3H), 2.91 (t, 4H J=4.8 Hz), 3.64 (t, 4H J=4.8 Hz), 5.15 (br s, 2H), 5.83 (s, 2H), 6.10 (d, 1H, J=2.1 Hz), 6.12 (d, 1H, J=2.1 Hz), 6.38 (d, 1H, J=7.5 Hz), 7.34 (t, 1H, J=7.5 Hz), 7.58-7.68 (m, 2H), 7.84 (d, 1H, J=8.4 Hz), 8.01 (d, 1H, J=7.5 Hz), 8.23 (d, 1H, J=8.4 Hz); LC-MS: m/e=373 [M+1]+

Workup

  1. customprepared
  2. temperatureat reflux temperature overnight
  3. customthe solvent was removed in-vacuo
  4. dissolutionThe residue was dissolved in DCM
  5. filtrationfiltered
  6. washThe filtrate was then washed with brine
  7. dry with materialdried over anhydrous Na2SO4
  8. filtrationfiltered
  9. concentrationconcentrated in-vacuo

Sources & evidence

ORD record
ord-b545462e1cca48158cf5fb7c1da38e61
Source dataset
uspto-grants-2015_10
Patent number
US09156797B2

Reaction notes

Loading…