Benzaldehyde → HCID 19600250, compound
Reaction equation
[O:1]1[CH:5]=[CH:4][C:3]([CH2:6][CH2:7][NH2:8])=[CH:2]1.[CH:9](=O)[C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1.[BH4-].[Na+].[OH-].[Na+]>CO>[CH2:9]([NH:8][CH2:7][CH2:6][C:3]1[CH:4]=[CH:5][O:1][CH:2]=1)[C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
A solution of the above crude 2-(3-furyl)ethylamine and 4.24 g (39.9 mmol) of benzaldehyde in 50 ml of methanol was stirred at room temperature for 0.5 hours. The reaction mixture was cooled with ice-water; 1.89 g (49.9 mmol) of sodium borohydride was added portionwise followed by stirring at room temperature for 1 hour. The reaction mixture was poured into aqueous sodium hydroxide and extracted with dichloromethane 3 times. The combined organic layer was dried over anhydrous magnesium sulfate; the solvent was distilled off under reduced pressure. The resulting crude product was purified by silica gel column chromatography (hexane/ethyl acetate=1/1 to ethyl acetate) to yield the desired product.
Workup
- extractionextracted with dichloromethane 3 times
- dry with materialThe combined organic layer was dried over anhydrous magnesium sulfate
- distillationthe solvent was distilled off under reduced pressure
- customThe resulting crude product was purified by silica gel column chromatography (hexane/ethyl acetate=1/1 to ethyl acetate)
Sources & evidence
- ORD record
- ord-0d21e052c5ee4b5aac518ab9b0c1f518
- Source dataset
- uspto-grants-1999_12
- Patent number
- US05998433
Reaction notes
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