Ethylene Glycol → HCID 22480359, compound
Reaction equation
[CH2:1]([N:8]1[C:16]2[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=2)[C:10]([C:17]2[O:18][C:19]([C:22]([O:24][CH2:25][CH3:26])=[O:23])=[CH:20][CH:21]=2)=[N:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(O)C[OH:29]>>[CH2:1]([N:8]1[C:16]2[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=2)[C:10]([C:17]2[O:18][C:19]([C:22]([O:24][CH2:25][CH2:26][OH:29])=[O:23])=[CH:20][CH:21]=2)=[N:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1Participants
3
Procedure
200 mg (0.6 mmol) of 1-benzyl-3-(5-ethoxycarbonyl-2-furyl)indazole were dissolved in ethylene glycol and heated under reflux for 1.5 h. For work-up, the mixture was concentrated using a rotary evaporator and the crude product was chromatographed over silica gel using hexane/ethyl acetate (1:1). This gave 68 mg (31%) of the title compound.
Workup
- temperatureheated
- temperatureunder reflux for 1.5 h
- concentrationFor work-up, the mixture was concentrated
- customa rotary evaporator
- customthe crude product was chromatographed over silica gel
Sources & evidence
- ORD record
- ord-274786430a4441f3b6bbd602bdcc8918
- Source dataset
- uspto-grants-2005_05
- Patent number
- US06897232B2
Reaction notes
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