3-(5'-Hydroxymethyl-2'-furyl)-1-benzylindazole → HCID 11312687, 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]([CH2:22][OH:23])=[CH:20][CH:21]=2)=[N:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1>C(Cl)(Cl)(Cl)Cl.[O-2].[Mn+4].[O-2]>[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]([CH:22]=[O:23])=[CH:20][CH:21]=2)=[N:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1Participants
4
Reactant 1
Product 1
Reagents, catalysts & solvents 2
Procedure
7.7 g (25.3 mmol) of 1-benzyl-3-(5-hydroxymethyl-2-furyl)indazole and 11 g (126.5 mmol) of activated manganese(IV) oxide in 200 ml of dry carbon tetrachloride were stirred under reflux for 4.5 h. For work-up, the mixture was filtered off with suction and the filtrate was washed with water, dried and concentrated using a rotary evaporator. The crude product was recrystallized from isopropanol. This gave 4.8 g (63%) of the title compound. m.p.: 108° C.