Syntheses and NMR Spectra of the Substituted Methylferrocenes

Abstract

Abstract Several 1′- and 2-substituted 1-methylferrocenes were prepared, and their NMR spectra were measured. From the consideration of the chemical shifts, the transmission coefficient of the electronic effect through the ferrocene nucleus was calculated to be 0.28. 1′-Substituted 1-acetylferrocenes were also prepared, and their NMR spectra were discussed in connection with those of methylferrocenes.