ChemInform Abstract: Reaction of Pyrrole Anions with Carbon Disulfide. Synthesis of Pyrrole-3-carbodithioates.
Abstract
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ChemInform Abstract
Treatment of 2,5-disubstituted pyrroles (I) with carbon disulfide and KOH/DMSO followed by ethyl iodide affords a direct synthesis of 3-pyrrole-carbodithioates (IV). 2-Methyl-, 2,3-dimethyl- and 2,4-dialkylpyrroles (V) give exclusively 2-carbodithioates (V) under the same conditions. The results are in complete contrast to unsubstituted pyrrole which selectively form the 1-carbodithioates.
