1-Benzyl-3,3-dichloro-1H-indol-2(3H)-one

The title compound, C₁₅H₁₁Cl₂NO, was synthesized from N-­benzyl­isatin. The compound crystallizes as stacks of mol­ecules running down the c axis. Mol­ecules within each of these stacks inter­act with each other through π–π and C—H...π inter­actions, and inter­act with neighbouring stacks through C—H...O inter­actions.