methyl iodide; t-BuOH; Pd/C in tetrahydrofuran under N2 atm. MeI was added to mixt. ferrocenes in THF, refluxed for 16 h, volatiles were removed in vacuo, t-BuOH and t-BuOK were added, refluxed for 15 h, cooled, CH2Cl2+H2O were added, org. phase was evapd., dissolved in EtOH, H2-Pd/C, 7 h; react. mixt. was filtered through Celite, filtrate was evapd. in vacuo, reversed-phase HPLC;