Acetic Acid → HCID 15516381, compound
Reaction equation
[CH2:1]1[O:10][C:9]2[CH:8]=[CH:7][C:5]([NH2:6])=[CH:4][C:3]=2[O:2]1.[N+:11]([C:14]1[CH:21]=[CH:20][C:17]([CH:18]=O)=[CH:16][CH:15]=1)([O-:13])=[O:12].C(O)(=O)C.[BH4-].[Na+]>CO>[N+:11]([C:14]1[CH:21]=[CH:20][C:17]([CH2:18][NH:6][C:5]2[CH:7]=[CH:8][C:9]3[O:10][CH2:1][O:2][C:3]=3[CH:4]=2)=[CH:16][CH:15]=1)([O-:13])=[O:12]Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
A solution of 3,4-methylenedioxyaniline (10 mmol) and 4-nitrobenzaldehyde (10 mmol) in methanol is stirred at ambient temperature for 18 hours. The precipitate obtained is filtered off and washed and then dissolved in tetrahydrofuran. After the addition of acetic acid and sodium borohydride (25 mmol), the reaction mixture is stirred at ambient temperature for 1 hour, then the solvent is evaporated off and the crude residue is purified by chromatography on silica using dichloromethane as eluant.
Workup
- customThe precipitate obtained
- filtrationis filtered off
- washwashed
- dissolutiondissolved in tetrahydrofuran
- customthe solvent is evaporated off
- customthe crude residue is purified by chromatography on silica
Sources & evidence
- ORD record
- ord-ba02b3f9cd7846c8aa14ebdf413aa64a
- Source dataset
- uspto-grants-2003_04
- Patent number
- US06548515B1
Reaction notes
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