A much improved route to 1,1′-bis(arylethynyl)ferrocenes comprising accessible thiolates on the aryl ring is reported. Unanticipated reactions between AcCl, TBAF-BBr3 and ferrocenyl-alkynes are also discussed, offering a rationale for previous synthetic difficulties.
Inkpen, M. S., White, A. J. P., Albrecht, T., & Long, N. J. (2014). Avoiding problem reactions at the ferrocenyl-alkyne motif: A convenient synthesis of model, redox-active complexes for molecular electronics. Dalton Transactions, 43(41), 15287–15290. https://doi.org/10.1039/c4dt02359e