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Molecules (Basel, Switzerland)

Brominated thiophenes as precursors in the preparation of brominated and arylated anthraquinones.


PMID 19305356

Abstract

Brominated anthraquinones can be synthesized directly from bromothiophenes when these are reacted with 1,4-naphthoquinones in the presence of meta-chloroperoxybenzoic acid. The bromoanthraquinones are versatile building blocks in the preparation of arylated anthraquinones and of extended pi-systems with interspersed anthraquinone units.