Synthesis of dibromo- and tetrabromo-bipyrrolines and their corresponding 2,6-diazasemibullvalene derivatives
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DOI: 10.1039/c7qo00287d
Abstract: Treatment of Δ1-dipyrrolines with NBS afforded α,α′-dibromo-Δ1-bipyrrolines and α,α,α′,α′-tetrabromo-Δ1-bipyrrolines respectively with excellent selectivity depending on the amount of NBS. All these multibromo-substituted Δ1-bipyrrolines could be efficiently transformed into their corresponding 2,6-diazasemibullvalene derivatives via reduction with… read more here.
Keywords: corresponding diazasemibullvalene; tetrabromo bipyrrolines; synthesis dibromo; diazasemibullvalene derivatives ... See more keywords