Potassium Carbonate → 1-Benzyl-3-(5-hydroxymethylfur-2-yl)indazole

Participants

Reaction Steps

2.06 g (54.6 mmol) of lithium aluminum hydride were initially charged in 250 ml of absolute THF, and a solution of 18.8 g (54.6 mmol) of 1-benzyl-3-(5-ethoxycarbonyl-2-furyl)indazole in 250 ml of THF was added dropwise. After 45 min the mixture was admixed with 25% strength potassium carbonate solution and stirred at RT for 30 min and the precipitate was filtered off with suction and washed with THF. The combined organic phases were concentrated using a rotary evaporator and the residue was recrystallized from isopropanol. This gave 11.0 g (67%) of the title compound. m.p.: 113-114° C.

Provenance & Evidence