Sulfuric Acid → HCID 20553480, compound
Reaction equation
[CH2:1]([N:3]([CH2:31][CH3:32])[CH2:4][CH2:5][O:6][C:7]1[CH:8]=[CH:9][C:10]2[C:19]([C:20]=1[Cl:21])=[N:18][C:17]1[C:12](=[CH:13][CH:14]=[C:15]([O:23][CH2:24][CH2:25][N:26]([CH2:29][CH3:30])[CH2:27][CH3:28])[C:16]=1[Cl:22])[CH:11]=2)[CH3:2].S(=O)(=O)(O)O.[N+:38]([O-])([O-:40])=[O:39].[K+].[OH-].[Na+]>>[CH2:27]([N:26]([CH2:29][CH3:30])[CH2:25][CH2:24][O:23][C:15]1[C:14]([N+:38]([O-:40])=[O:39])=[CH:13][C:12]2[C:17]([C:16]=1[Cl:22])=[N:18][C:19]1[C:10](=[CH:9][CH:8]=[C:7]([O:6][CH2:5][CH2:4][N:3]([CH2:1][CH3:2])[CH2:31][CH3:32])[C:20]=1[Cl:21])[CH:11]=2)[CH3:28]Participants
Conditions
- Temperature
- 0 °C
Procedure
A 119.5 mg. portion of 3,6-bis(2-diethylaminoethoxy)-4,5-dichloroacridine is dissolved in one ml. of concentrated sulfuric acid. The solution is cooled in an ice bath and 60 mg. of potassium nitrate are added. The mixture is stirred at 0° C. for one hour, then at room temperature for 20 hours, poured into 20 ml. of ice water and the pH adjusted to 11.5 with 5 N sodium hydroxide. The mixture is then extracted three times with dichloromethane. The extracts are combined, dried over anhydrous sodium sulfate, filtered and concentrated in vacuo to a black gum. This gum is slurried in 25 ml. of boiling hexane and filtered. The filtrate is concentrated to 10 ml. and cooled in an ice bath. The crystals are collected and dried in vacuo, giving 54 mg. of the desired product, m.p. 100°-102° C.
Workup
- temperatureThe solution is cooled in an ice bath
- waitat room temperature for 20 hours
- additionpoured into 20 ml
- extractionThe mixture is then extracted three times with dichloromethane
- dry with materialdried over anhydrous sodium sulfate
- filtrationfiltered
- concentrationconcentrated in vacuo to a black gum
- filtrationof boiling hexane and filtered
- concentrationThe filtrate is concentrated to 10 ml
- temperatureand cooled in an ice bath
- customThe crystals are collected
- customdried in vacuo
- customgiving 54 mg
Sources & evidence
- ORD record
- ord-02b7414d30244e74860fa03f249a32bc
- Source dataset
- uspto-grants-1982_02
- Patent number
- US04314061
Reaction notes
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