Heterocyclic Compounds
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ChemInform Abstract: Unsymmetrical and Highly-Conjugated Tetrathiafulvalene and Selenatrithiafulvalene Derivatives: Synthesis and Reactions of Novel Heterocyclic Wittig-Horner Reagents.
First published: September 11, 1990
Abstract
Coupling reaction of anthrone (I) with the 1,3-dithiolium tetrafluoroborates (II) yields the semiquinones (III) which are coupled with the phosphonates (IV) or (VI) in the presence of butyllithium to give the anthracenediylidenebisdithioles (V) or the analogous selenatrithiafulvalenes (VII).
ChemInform Abstract
Coupling reaction of anthrone (I) with the 1,3-dithiolium tetrafluoroborates (II) yields the semiquinones (III) which are coupled with the phosphonates (IV) or (VI) in the presence of butyllithium to give the anthracenediylidenebisdithioles (V) or the analogous selenatrithiafulvalenes (VII). The tetrathiafulvalene (IX) is prepared from (IIb) and (IVb) via elimination reaction of the intermediate phosphonate (VIII). (Cyclic voltammetric data).
