1,2-Dichlorobenzene → HCID 22459076, compound
Reaction equation
[C:1]1([CH2:7][CH2:8][C:9]2[C:13]3[CH:14]=[CH:15][C:16]([O:18]CC=C)=[CH:17][C:12]=3[O:11][CH:10]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.Cl[C:23]1[CH:28]=CC=C[C:24]=1Cl>>[C:1]1([CH2:7][CH2:8][C:9]2[C:13]3[CH:14]=[CH:15][C:16]([OH:18])=[C:17]([CH2:28][CH:23]=[CH2:24])[C:12]=3[O:11][CH:10]=2)[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1Participants
3
Conditions
- Temperature
- 50 °C
Procedure
The product from Step D (1.245 grams), dissolved in 1,2-dichlorobenzene (20 mL) was refluxed under nitrogen for 11 hours. The solution was cooled to approx. 50° C. High vacuum was applied and the solvent removed until the residue solidified. The solid was dissolved in CH2Cl2 (100 mL), recovered, re-evaporated and chromatographed over silica gel (5:1 hex/ethyl acetate). Evaporation of the appropriate fractions gave the title compound as a pale yellow solid.
Workup
- temperaturewas refluxed under nitrogen for 11 hours
- customthe solvent removed until the residue solidified
- dissolutionThe solid was dissolved in CH2Cl2 (100 mL)
- customrecovered
- customre-evaporated
- customchromatographed over silica gel (5:1 hex/ethyl acetate)
- customEvaporation of the appropriate fractions
Sources & evidence
- ORD record
- ord-b9ef4fd464b34099a64fac99b5f873dd
- Source dataset
- uspto-grants-2002_06
- Patent number
- US06399640B1
Reaction notes
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