No abstract

A facile synthesis of methyl 1,5‐diaryl‐1H‐pyrrole‐2‐carboxylates was reported in this article. Acid‐catalyzed reaction of methyl 2‐aroyl‐1‐phenoxycyclopropanecarboxylates with aromatic amines underwent smoothly to give methyl 1,5‐diaryl‐1H‐pyrrole‐2‐carboxylates in high to excellent yields under mild conditions.

In this article, a direct synthetic method for alkyl 5‐arylthiophene‐2‐thiocarboxylates was reported. Treatment of alkyl 2‐aroyl‐1‐chlorocyclopropanecarboxylates with excess amount of Lawesson's reagent readily afforded alkyl 5‐arylthiophene‐2‐thiocarboxylates in good to excellent yields under mild conditions. This cycloisomerization reaction process would be initiated by a ring‐opening of the strained cyclopropane.