3-Nitrobenzaldehyde → [5-(5,6-Difluoro-1H-indol-2-yl)-2-methoxy-phenyl]-(3-nitrobenzyl)-amine

HRID 25527

Reaction equation

HRID 25527 reaction equation
[N+:1]([C:4]1[CH:5]=[C:6]([CH:9]=[CH:10][CH:11]=1)[CH:7]=O)([O-:3])=[O:2].[F:12][C:13]1[CH:14]=[C:15]2[C:19](=[CH:20][C:21]=1[F:22])[NH:18][C:17]([C:23]1[CH:24]=[CH:25][C:26]([O:30][CH3:31])=[C:27]([NH2:29])[CH:28]=1)=[CH:16]2.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(=O)(O)[O-].[Na+]>C(Cl)Cl.C(O)(=O)C>[F:12][C:13]1[CH:14]=[C:15]2[C:19](=[CH:20][C:21]=1[F:22])[NH:18][C:17]([C:23]1[CH:24]=[CH:25][C:26]([O:30][CH3:31])=[C:27]([NH:29][CH2:7][C:6]3[CH:9]=[CH:10][CH:11]=[C:4]([N+:1]([O-:3])=[O:2])[CH:5]=3)[CH:28]=1)=[CH:16]2

Participants

7

Reactant 4

HCID 74493-NitrobenzaldehydeHCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 99434395-(5,6-difluoro1H-indol-2-yl)-2-methoxy-phenylamine

Product 1

HCID 10112155[5-(5,6-Difluoro-1H-indol-2-yl)-2-methoxy-phenyl]-(3-nitrobenzyl)-amineYield 26.9%

Reagents, catalysts & solvents 2

HCID 176Acetic AcidSolventHCID 6344DichloromethaneSolvent

Procedure

3-Nitrobenzaldehyde (0.3 g, 2.0 mmol) was added to a stirred mixture of 5-(5,6-difluoro-1H-indol-2-yl)-2-methoxy-phenylamine (0.548 g, 2.0 mmol) in methylene chloride (125 mL), followed by acetic acid (0.2 g). The resulting mixture is stirred at room temperature for 1 hour. Sodium triacetoxyborohydride (0.46 g, 2.2 mmol) was added in one portion, and the resulting homogeneous solution was stirred at room temperature for 6 days. Saturated aqueous sodium bicarbonate solution (100 mL) was added and the mixture was sired for 2 hours. The mixture was shaken, the organic layer was separated and dried over Na2SO4. The solvent was evaporated to give a yellow solid. Recrystallization from methanol gave the product (220 mg), mp 212-214° C.

Workup

  1. stirringthe resulting homogeneous solution was stirred at room temperature for 6 days
  2. waitthe mixture was sired for 2 hours
  3. stirringThe mixture was shaken
  4. customthe organic layer was separated
  5. dry with materialdried over Na2SO4
  6. customThe solvent was evaporated
  7. customto give a yellow solid
  8. customRecrystallization from methanol

Sources & evidence

ORD record
ord-cc25dad197fc4974b9fe077fbac97fd9
Source dataset
uspto-grants-2005_02
Patent number
US06858739B2

Linked notes

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