The p-acetoxybenzylsulfanyl protecting group is compatible with the triethylphosphite mediated cross-coupling of 4,5-bis(alkylsulfanyl)-1,3-dithiol-2-ones, providing access to bis(protected)tetrathiafulvalenes, and thus to tetrathiafulvalenedithiolate dianion 10, which can be alkylated to give unsymmetrical tetrakis(alkylsulfanyl)tetrathiafulvalene derivatives.
C. Gemmell, G. C. Janairo, J. D. Kilburn, H. Ueck and A. E. Underhill, J. Chem. Soc., Perkin Trans. 1, 1994, 2715 DOI: 10.1039/P19940002715
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