Methylamine → 4-Bromo-2-(2-methoxy-3-methylaminomethyl-phenoxy)-benzonitrile fumarate

HRID 1178498Notes

Reaction equation

HRID 1178498 reaction equation
[Br:1][C:2]1[CH:9]=[CH:8][C:5]([C:6]#[N:7])=[C:4]([O:10][C:11]2[CH:16]=[CH:15][CH:14]=[C:13]([CH:17]=O)[C:12]=2[O:19][CH3:20])[CH:3]=1.CN.[C:23]([BH3-])#[N:24].[Na+].[C:27]([OH:34])(=[O:33])/[CH:28]=[CH:29]/[C:30]([OH:32])=[O:31]>C(O)(=O)C.CO>[C:27]([OH:34])(=[O:33])/[CH:28]=[CH:29]/[C:30]([OH:32])=[O:31].[Br:1][C:2]1[CH:9]=[CH:8][C:5]([C:6]#[N:7])=[C:4]([O:10][C:11]2[CH:16]=[CH:15][CH:14]=[C:13]([CH2:17][NH:24][CH3:23])[C:12]=2[O:19][CH3:20])[CH:3]=1

Participants

6

Reactant 4

HCID 6329MethylamineHCID 444972Fumaric AcidHCID 5003444Sodium cyanoborohydrideHCID 219304064-Bromo-2-(3-formyl-2-methoxyphenoxy)benzonitrile

Product 1

HCID 219303884-Bromo-2-(2-methoxy-3-methylaminomethyl-phenoxy)-benzonitrile fumarateYield 71%

Reagents, catalysts & solvents 1

HCID 10129899Acetic acid methanolSolvent

Procedure

4-Bromo-2-(3-formyl-2-methoxyphenoxy)benzonitrile (0.55 g, 1.7 mmol), methylamine (2M in methanol, 3.0 mL, 6.0 mmol) and sodium cyanoborohydride (120 mg, 1.9 mmol) were stirred at ambient temperature in a 1% acetic acid/methanol solution (40 mL) for 17 h. The solvent was removed in vacuo. The residue was treated with 10% sodium carbonate solution and extracted with ethyl acetate. The ethyl acetate layer was separated and fumaric acid (0.20 g, 1.7 mmol) was added. After the solvent was removed in vacuo, the residue was triturated with ethyl acetate overnight, collected by filtration, and dried to give 4-bromo-2-(2-methoxy-3-methylaminomethyl-phenoxy)-benzonitrile fumarate (546 mg, 71%) as a white solid.

Workup

  1. customThe solvent was removed in vacuo
  2. additionThe residue was treated with 10% sodium carbonate solution
  3. extractionextracted with ethyl acetate
  4. customThe ethyl acetate layer was separated
  5. customAfter the solvent was removed in vacuo
  6. customthe residue was triturated with ethyl acetate overnight
  7. filtrationcollected by filtration
  8. customdried

Sources & evidence

ORD record
ord-4f7318c6e68c4fe1a5e529d72e9cedea
Source dataset
uspto-grants-2007_10
Patent number
US07276528B2

Reaction notes

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