Ammonia → HCID 69069761, compound
Reaction equation
[C:1]([N:4]1[C:12]2[C:7](=[CH:8][CH:9]=[C:10]([Cl:13])[CH:11]=2)[CH2:6][C:5]1=[O:14])(=[O:3])[CH3:2].[N+:15]([O-])([O-:17])=[O:16].[NH4+].N>S(=O)(=O)(O)O>[C:1]([N:4]1[C:12]2[C:7](=[CH:8][C:9]([N+:15]([O-:17])=[O:16])=[C:10]([Cl:13])[CH:11]=2)[CH2:6][C:5]1=[O:14])(=[O:3])[CH3:2]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
2.75 g 1-acetyl-6-chloro-2-indolinone (educt V.1) are placed in 40 ml concentrated sulphuric acid and at −10° C. 1.05 g of ammonium nitrate are added. The mixture is stirred for 1.5 hours at ambient temperature. After this time the mixture is poured onto ice water and stirred for a further 20 minutes. The solution is neutralised with concentrated ammonia, the precipitate formed is suction filtered and washed with a little ethanol and ether.
Workup
- additionAfter this time the mixture is poured onto ice water
- stirringstirred for a further 20 minutes
- customthe precipitate formed
- filtrationfiltered
- washwashed with a little ethanol and ether
Sources & evidence
- ORD record
- ord-9d2f134093514e13a6a54a79e9378994
- Source dataset
- uspto-grants-2009_04
- Patent number
- US07514468B2
Reaction notes
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