Ammonia → 1-(4-Aminophenyl)-3-azabicyclo[3.1.0]hexane-2,4-dione
Reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2([C:14]([OH:16])=O)[CH2:10][CH:9]2[C:11](O)=[O:12])=[CH:4][CH:3]=1.[NH3:17]>>[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]23[CH2:10][CH:9]2[C:11](=[O:12])[NH:17][C:14]3=[O:16])=[CH:4][CH:3]=1Participants
3
Procedure
In a glass bomb tube, 2.3 g of 1-(4-aminophenyl)-1,2-cyclopropanedicarboxylic acid are stirred in 80 ml of approx. 1N methanolic ammonia solution for 7 days at 100° C. The reaction mixture is evaporated to dryness and the residue is chromatographed over silica gel with hexane/ethyl acetate (4:6). Recrystallisation from ethanol affords white crystals of the title compound, which is identical with the title compound of Example 1.
Workup
- customThe reaction mixture is evaporated to dryness
- customthe residue is chromatographed over silica gel with hexane/ethyl acetate (4:6)
- customRecrystallisation from ethanol
Sources & evidence
- ORD record
- ord-6909bc20c31c4a9f8a89c4819f518c19
- Source dataset
- uspto-grants-1989_06
- Patent number
- US04839379
Reaction notes
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