Formaldehyde → HCID 13280357, compound
Reaction equation
[NH:1]1[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.[CH2:7]=O.[CH3:9][O:10][C:11]1[CH:16]=[C:15]([CH:17]=[O:18])[CH:14]=[CH:13][C:12]=1[OH:19]>C(O)C>[OH:19][C:12]1[C:13]([CH2:7][N:1]2[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]2)=[CH:14][C:15]([CH:17]=[O:18])=[CH:16][C:11]=1[O:10][CH3:9]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
25.5 g (0.30 mol) of piperidine were added to 24.0 g (0.30 mol) of a 37% aqueous formaldehyde solution in 180 ml of ethanol. Then 30.4 g (0.20 mol) of 4-hydroxy-3-methoxybenzaldehyde (vanillin) were added. The reaction mixture was refluxed for one hour. A solid began to precipitate out as early as during cooling, which was filtered out after complete cooling of the reaction batch and dried.
Workup
- temperatureThe reaction mixture was refluxed for one hour
- customto precipitate out as early as
- temperatureduring cooling
- filtrationwhich was filtered out
- temperatureafter complete cooling of the reaction batch
- customdried
Sources & evidence
- ORD record
- ord-449f025dc7584ee38f2e7051b5216b62
- Source dataset
- uspto-grants-2010_09
- Patent number
- US07799096B2
Reaction notes
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