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A solution of 2-chloronicotinoyl chloride (1 eq.) in dichloromethane (10 mL) was added slowly to a mixture of pyrrole (1.5 eq.) (Aldrich, Milwaukee, Wis.) and aluminum chloride (3.5 g, 1 eq.) in dichloromethane (8 mL) at 0° C. The mixture was stirred at 0° C. for 10 mins and at room temperature for 30 mins. The reaction was diluted with ethyl acetate, washed with brine, dried and concentrated. The residue was purified on a silica gel column to give 2.27 g of (2-chloro-pyridin-3-yl)-(1H-pyrrol-2-yl)-methanone.

1. washwashed with brine
2. customdried
3. concentrationconcentrated
4. customThe residue was purified on a silica gel column