Tetrathiafulvalene vinylogues

A new electron donor tetrathiafulvalene vinylogue (240) has been synthesized using both phosphonium ylide- and phosphonate-based olefinations (Scheme 20). 25 Both Wittig reactions and Wadsworth-Emmons reactions have also been applied to the synthesis of new vinylogous tetrathiafulvalenes, e.g. (243). from (241) and (242). 26... 

The synthesis, electrochemical and electronic absorption properties, crystal structure, and molecular orbital calculations of catechol-appended TTF derivative 67 (13TL4015) and a review into chalcogen-rich compounds as electron donors (B-13MI99) have been published. The synthesis, structure, and electronic properties ofthe bromophenyl-substituted dithiafulvenes 68-70, tetrathiafulvalene vinylogues (TTFVs) 71-73, and the unusual spiro-compound 74 produced from 70 have been reported... 

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