ChemInform Abstract: Synthesis of Some New Pyrrolo(2,3-f)benzopyrrol-4,8-dione Derivatives.
Abstract
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ChemInform Abstract
The synthesis of a variety of new pyrrolobenzopyrrole derivatives by reaction of N-aryl-substituted 3,6-diamino-2,5-dibromo-1,4-benzoquinones (I) with active methylene compounds is described.