Water → HCID 12897075, compound

Participants

Reaction Steps

To a solution of methyl pyrrole-3-carboxylate (1.25 g., 10 mmoles) in 25 ml. of methylene chloride under nitrogen, was added cyclohexanecarbonyl chloride (1.46 g., 1.33 ml., 10 mmoles) and then stannic chloride (3.13 g., 1.4 ml., 14 mmoles). The resulting solution was stirred 3 hours at room temperature, then 15 ml. of water added slowly and finally 50 ml. of ether. The organic phase was separated, washed with 20 ml. of water, filtered and evaporated to yield methyl 5-cyclohexylcarbonylpyrrole-3-carboxylate (Rf 0.25 on silica gel thin layer chromatography with ethyl acetate-1/hexane-5/5% acetic acid as eluant). The entire batch was used, without weight determination, in the next step.

Provenance & Evidence