Benzimidazole → HCID 58911256, compound

Participants

Reaction Steps

A solution of 1-(hydroxymethyl)-1,3-dihydro-2H-indol-2-one a25 (1 eq, 3.06 mmol, 500 mg), benzimidazole (4 eq, 12.26 mmol, 1.45 g) and carbonyldiimidazole (1 eq, 3.06 mmol, 500 mg) in acetonitrile (3 ml) was irradiated in a microwave apparatus (CEM discover) for 10 minutes (100 w). After evaporation of the acetonitrile under reduced pressure, the crude product was purified by preparative HPLC on reverse phase to give 203 mg of 1-(1H-benzimidazol-1-ylmethyl)-1,3-dihydro-2H-indol-2-one 167 (25%) after recrystallization in diisopropylether.

Provenance & Evidence