Ammonia → HCID 18426773, compound
Reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C:9]2([CH2:17][CH2:18][C:19]([OH:21])=[O:20])[CH2:14][CH2:13][C:12](=[O:15])[NH:11][C:10]2=[O:16])[CH:5]=[CH:6][C:7]=1[Cl:8].[NH3:22]>>[C:10]([C:9]([C:4]1[CH:5]=[CH:6][C:7]([Cl:8])=[C:2]([Cl:1])[CH:3]=1)([CH2:14][CH2:13][C:12](=[O:15])[NH2:11])[CH2:17][CH2:18][C:19]([OH:21])=[O:20])(=[O:16])[NH2:22]Participants
3
Procedure
3.30 g of racemic 3-(3,4-dichlorophenyl)-2,6-dioxopiperidine-3-propionic acid are placed in 20 ml of an aqueous solution of aqueous ammonia at 30% and stirred at room temperature. After 2 hours, the solution is degassed under vacuum to remove the excess aqueous ammonia and then diluted to 50 ml with water. The medium is slowly acidified to pH 2-3 with 1 N HCl. The precipitate formed is filtered, drained and then dried over KOH to give 3.13 g of the expected compound.
Workup
- customthe solution is degassed under vacuum
- customto remove the excess aqueous ammonia
- additiondiluted to 50 ml with water
- customThe precipitate formed
- filtrationis filtered
- dry with materialdried over KOH
Sources & evidence
- ORD record
- ord-3bfe2da205284e43b28edc2afeda673f
- Source dataset
- uspto-grants-2002_01
- Patent number
- US06342607B1
Reaction notes
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