87258-25-1

Upstream product

• 142384-58-5 (E)-5,5'-Bis-diethoxymethyl-[2,2']bi[[1,3]dithiolylidene]-4,4'-dicarbaldehyde 
• 87258-15-9 4-formyl-5-(diethoxymethyl)-1,3-dithiole-2-thione 
• 142409-25-4 4,5,4',5'-Tetrakis-diethoxymethyl-[2,2']bi[[1,3]dithiolylidene] 
• 142059-44-7 4,5-Bis-diethoxymethyl-[1,3]dithiole-2-thione 
• 87258-18-2 tetraformyl-tetrathiafulvalene 
• 87258-23-9 4,5,4',5'-Tetrakis-(2-methyl-propenyl)-[2,2']bi[[1,3]dithiolylidene] 
• 1518-16-7 7,7',8,8'-tetracyanoquinodimethane 

Relevant academic research and scientific papers

Tetraformyltetrathiafulvalene (TFTTF) and acetals, precursors of polyfunctionalized TTFs

A short synthesis of 1,3-dithiol-2-thiones bearing two aldehyde functionalities, free and/or masked as diethylacetals is described. They are shown to be convenient precursors for synthesizing di- and tetraformyl-TTF. When submitted to four-fold nucleophilic attacks, the latter readily affords new substituted derivatives such as the bis-(pyridazino)-TTF 8, the tetrakis-(hydroxymethyl)-TTF 9 and the tetravinylic-TTF 10 whose π-donor ability has been characterized.