Thiafulvenes and Thiafulvalenes in Organic Chemistry: Synthesis and Chemical Reactions.

Fulvalenes and their derivatives have wide industrial, biological and therapeutic conductivity applications. The synthesis and chemistry of fulvalenes and derivatives starting with dithiolethiones, and main constituent of the fulvalenes moiety. I-Dithiol thiones: 1) 1,2-dithiolthiones: synthesis from 1,3-dithioles and from sulfur and nitrogen alkyl compounds by sulfuryl chloride. Reactions: photo-cycloadditions reactions, reactions with alkynes, and akylation reactions. 2) 1,3-dithiolthiones: ring synthesis from non heterocyclic compounds and heterocyclic compounds. Reactions: photochemical reactions, electrophilic attack at S-Nucleophilic attack at C. II-Fulvalenes: 1) Dithiafulvalenes; 2) Trithiafulvalenes; 3) Tetrathiafulvalenes. [ABSTRACT FROM AUTHOR]