Sodium Carbonate → HCID 58625110, compound
Reaction equation
[CH:1]1([NH:7][C:8]2[CH:13]=[CH:12][CH:11]=[C:10]([O:14][C:15]3[CH:20]=[CH:19][C:18]([N+:21]([O-:23])=[O:22])=[C:17]([CH:24]([O:27][CH3:28])[O:25][CH3:26])[CH:16]=3)[CH:9]=2)[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.C([O-])([O-])=O.[Na+].[Na+].Cl[C:36]([O:38][CH2:39][C:40]1[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=1)=[O:37]>O.C1COCC1.C(Cl)Cl>[CH2:39]([O:38][C:36](=[O:37])[N:7]([CH:1]1[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6]1)[C:8]1[CH:13]=[CH:12][CH:11]=[C:10]([O:14][C:15]2[CH:20]=[CH:19][C:18]([N+:21]([O-:23])=[O:22])=[C:17]([CH:24]([O:25][CH3:26])[O:27][CH3:28])[CH:16]=2)[CH:9]=1)[C:40]1[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=1Participants
Conditions
- Temperature
- 5 °C
Procedure
A mixture of cyclohexyl-[3-(3-dimethoxymethyl-4-nitro-phenoxy)-phenyl]-amine (0.00868 mol) and Na2CO3 (0.02083 mol) in H2O (15 mL) and THF (75 mL) was stirred at 5° C. A solution of benzyl chloroformate (0.0104 mol) in THF (25 mL) was added dropwise over 15 min at 5° C. The resultant reaction mixture was stirred for 21 hours at room temperature. This mixture was extracted with diisopropyl ether. The separated organic layer was dried (MgSO4) and filtered, and the solvent was evaporated. The residue (0.00633 mol A) was reacted again with benzyl chloroformate (1.3 g, 0.0076 mol) and TEA (1.53 g, 0.0152 mol) in DCM (70 mL) under the same conditions as above. The residue was purified by column chromatography over silica gel (eluent: 95:5 CH2Cl2:hexane). The product fractions were collected and the solvent was evaporated to yield the title compound as a residue.
Workup
- customThe resultant reaction mixture
- stirringwas stirred for 21 hours at room temperature
- extractionThis mixture was extracted with diisopropyl ether
- dry with materialThe separated organic layer was dried (MgSO4)
- filtrationfiltered
- customthe solvent was evaporated
- customThe residue was purified by column chromatography over silica gel (eluent: 95:5 CH2Cl2:hexane)
- customThe product fractions were collected
- customthe solvent was evaporated
Sources & evidence
- ORD record
- ord-6b4eece35d9e474c9558cca8ee454d73
- Source dataset
- uspto-grants-2013_04
- Patent number
- US08426429B2
Reaction notes
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