Iodine → HCID 20515170, compound
Reaction equation
[CH:1]1([C:7]2C=[CH:11][C:10]([C:13](=[O:19])[C:14]([O:16][CH2:17][CH3:18])=[O:15])=[CH:9][CH:8]=2)[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.II.[Cl:22]Cl.[C:24]([Cl:28])(Cl)(Cl)Cl>>[Cl:22][C:8]1[CH:9]=[C:10]([C:13](=[O:19])[C:14]([O:16][CH2:17][CH3:18])=[O:15])[CH:11]=[C:24]([Cl:28])[C:7]=1[CH:1]1[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1Participants
5
Conditions
- Temperature
- 0 °C
Procedure
Ethyl p-cyclohexylphenylglyoxylate, 49.5 g. (0.19 mole) and 6.1 g. of iodine are dissolved in 100 ml. of carbon tetrachloride. To this solution is added a solution of 56.7 g. (0.8 mole) of chlorine dissolved in 500 ml. of carbon tetrachloride over a period of 3 hours. During the addition, the temperature of the reaction mixture is maintained at 0° C. The mixture is stirred for 3 hours and allowed to stand with gradual warming to room temperature over 30 hours. The solvent is removed in vacuo. The residue is fractionally distilled to obtain ethyl 3,5-dichloro-4-cyclohexylphenylglyoxylate.
Workup
- additionTo this solution is added a solution of 56.7 g
- additionDuring the addition
- temperaturewith gradual warming to room temperature over 30 hours
- customThe solvent is removed in vacuo
- distillationThe residue is fractionally distilled
Sources & evidence
- ORD record
- ord-84ca3aebe1814c88ba37e42ba26860be
- Source dataset
- uspto-grants-1979_04
- Patent number
- US04150148
Reaction notes
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