Reactivity of thienopyrroles. Synthesis of isomeric nitro and bromothienopyrroles
Abstract
The preparation of ethyl 2-bromothieno[2,3-b]pyrrole-5-carboxylate, ethyl 2-bromothieno[3,2-b]pyrrole-5-carboxylate, ethyl 2-nitrothieno[2,3-b]pyrrole-5-carboxylate and ethyl 2-nitrothieno[3,2-b]pyrrole-5-carboxylate are described.