Ethyl chloroformate → HCID 68556648, compound
Reaction equation
[CH2:1]([O:3][C:4](=[O:24])[CH2:5][NH:6][C:7]1[CH:12]=[C:11]([Cl:13])[C:10]([O:14][C:15]2[CH:20]=[CH:19][C:18]([O:21][CH3:22])=[CH:17][CH:16]=2)=[C:9]([Cl:23])[CH:8]=1)[CH3:2].Cl[C:26]([O:28][CH2:29][CH3:30])=[O:27]>>[CH2:1]([O:3][C:4](=[O:24])[CH2:5][N:6]([C:7]1[CH:12]=[C:11]([Cl:13])[C:10]([O:14][C:15]2[CH:20]=[CH:19][C:18]([O:21][CH3:22])=[CH:17][CH:16]=2)=[C:9]([Cl:23])[CH:8]=1)[C:26]([O:28][CH2:29][CH3:30])=[O:27])[CH3:2]Participants
3
Procedure
[3,5-Dichloro-4-(4-methoxy-phenoxy)-phenylamino]-acetic acid ethyl ester (10.0 g, 0.02 mol) was stirred with ethyl chloroformate (95 mL) at reflux temperature for 16 hrs. From the reaction mixture ethyl chloroformate was evaporated under reduced pressure and the residue was taken up in ethyl acetate, washed with water, brine, dried over sodium sulphate, filtered and concentrated to give {[3,5-Dichloro-4-(4-methoxy-phenoxy)-phenyl]-ethoxycarbonyl-amino}-acetic acid ethyl ester (7.25 g, 61% Yield)
Workup
- temperatureat reflux temperature for 16 hrs
- customFrom the reaction mixture ethyl chloroformate was evaporated under reduced pressure
- washwashed with water, brine
- dry with materialdried over sodium sulphate
- filtrationfiltered
- concentrationconcentrated
Sources & evidence
- ORD record
- ord-e93a9aabda214064b1aebb52b3cc1df4
- Source dataset
- uspto-grants-2013_04
- Patent number
- US08420851B2
Reaction notes
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