3,4,5,6-Tetrahydrophthalic anhydride → HCID 20541555, compound
Reaction equation
[C:1]1(=[O:11])[O:6][C:4](=[O:5])[C:3]2[CH2:7][CH2:8][CH2:9][CH2:10][C:2]1=2.[F:12][C:13]1[CH:19]=[C:18]([Cl:20])[CH:17]=[CH:16][C:14]=1[NH2:15]>CC(C)=O>[F:12][C:13]1[CH:19]=[C:18]([Cl:20])[CH:17]=[CH:16][C:14]=1[NH:15][C:4](=[O:5])[C:3]1[CH2:7][CH2:8][CH2:9][CH2:10][C:2]=1[C:1]([OH:6])=[O:11]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
3,4,5,6-tetrahydrophthalic anhydride (7.7 g) and 2-fluoro-4-chloroaniline (7.2 g) were added to acetone (50 ml) and, after stirring at 50°-55° C. for 5 minutes, the reaction mixture was concentrated under reduced pressure. The resultant crystals were washed with n-hexane. Yield 13.2 g; m.p. 92°-94° C.
Workup
- concentrationthe reaction mixture was concentrated under reduced pressure
- washThe resultant crystals were washed with n-hexane
Sources & evidence
- ORD record
- ord-02da71f5a42d463fbc239880564cdc9f
- Source dataset
- uspto-grants-1982_05
- Patent number
- US04328367
Reaction notes
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