2,4-Dichloronitrobenzene → HCID 20240185, compound
Reaction equation
Cl[C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[CH:4][C:3]=1[N+:9]([O-:11])=[O:10].[K].O.[CH:14](=[O:22])[C:15]1[C:16](=[CH:18][CH:19]=[CH:20][CH:21]=1)[OH:17]>>[Cl:8][C:6]1[CH:5]=[CH:4][C:3]([N+:9]([O-:11])=[O:10])=[C:2]([CH:7]=1)[O:17][C:16]1[CH:18]=[CH:19][CH:20]=[CH:21][C:15]=1[CH:14]=[O:22]Participants
4
Conditions
- Temperature
- 170 °C
Procedure
The 2-(5-chloro-2-nitrophenoxy)benzaldehyde was prepared as follows: To 16.2 g of 2,4-dichloronitrobenzene stirred at 170° was added 7.1 g of the potassium salt of salicylaldehyde, monohydrate, in portions over 1.5 hours. The mixture was stirred at 170° C. for two hours, triturated with 150 ml of CH2Cl2 and filtered. The filtrate was evaporated to a red oil and the excess dichloronitrobenzene was removed by steam distillation to leave the product.
Workup
- customtriturated with 150 ml of CH2Cl2
- filtrationfiltered
- customThe filtrate was evaporated to a red oil
- customthe excess dichloronitrobenzene was removed by steam distillation
- customto leave the product
Sources & evidence
- ORD record
- ord-67da31c495f34d20a43bff2c6600b955
- Source dataset
- uspto-grants-1986_08
- Patent number
- US04604390
Reaction notes
Loading…