The synthesis of the first fused [3,4]furano-TTFs has been accomplished starting from the 4-formyl-5-diethoxymethyl-2-thioxo-1,3-dithiole. Two routes have been explored involving either the furan ring or the TTF core. In particular, the first proceeds via the new [3,4]furano-2-thioxo-1,3-dithiole.
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 pi-donor ability has been characterized.
Salle, Marc; Gorgues, Alain; Jubault, Michel, Bulletin de la Societe Chimique de France, 1996, vol. 133, # 4, p. 417 - 426
作者:Salle, Marc、Gorgues, Alain、Jubault, Michel、Boubekeur, Kamal、Batail, Patrick、Carlier, Roger
DOI:——
日期:——
Nozdryn, Tomasz; Cousseau, Jack; Gorgues, Alain, Journal of the Chemical Society. Perkin transactions I, 1993, # 15, p. 1711 - 1712