in diethyl ether mixt. heating at 30-35°C for 30 min; monitoring by TLC;

in not given reaction for 6.5 h at 65°C;;

methanol in methanol byproducts: CH3OCH3, CH3CO2H, CH3OHgOC(O)CH3; mercuric acetate in anhydrous methanol added dropwise (over a period of10-15 min) to a stirred soln. of ethynylferrocene at room temp. under N2, pptd., 0 min, molar ratio of FcCCH/Hg(OAc)2: 0.48/0.22; filtered off, evapd., 1.: residue chromd. on silica gel (40-70°C/petroleum ether and diethyl ether) or 2.: dissolved with CH2Cl2, washedwith water, dried over anhydrous Na2SO4, concd., chromd. on silica gel,GC, elem anal.;

methanol; iodine in methanol byproducts: CH3OCH3, CH3CO2H, CH3OHgOC(O)CH3; mercuric acetate in anhydrous methanol added dropwise (over a period of10-15 min) to a stirred soln. of ethynylferrocene at room temp. under N2, pptd., 16 h, molar ratio of FcCCH/Hg(OAc)2: 1.00/1.25, excess of I2 in either CH3OH or CH2Cl2 added; mixture poured into water and CCl4, organic phase sepd., treated twice with 10percent aq. Na2S2O3, washed with water, dried over anhydrous Na2SO4, excess I2 removed, GC;

methanol; iodine in methanol byproducts: CH3OCH3, CH3CO2H, CH3OHgOC(O)CH3; mercuric acetate in anhydrous methanol added dropwise (over a period of10-15 min) to a stirred soln. of ethynylferrocene at room temp. under N2, pptd., 72 h, molar ratio of FcCCH/Hg(OAc)2: 0.48/0.44, excess of I2 in either CH3OH or CH2Cl2 added; mixture poured into water and CCl4, organic phase sepd., treated twice with 10percent aq. Na2S2O3, washed with water, dried over anhydrous Na2SO4, excess I2 removed, GC;

methanol in methanol byproducts: CH3OCH3, CH3CO2H, CH3OHgOC(O)CH3; mercuric acetate in anhydrous methanol added dropwise (over a period of10-15 min) to a stirred soln. of ethynylferrocene at room temp. under N2, pptd., 12 h, molar ratio of FcCCH/Hg(OAc)2: 0.48/0.44; filtered off, evapd., 1.: residue chromd. on silica gel (40-70°C/petroleum ether and diethyl ether) or 2.: dissolved with CH2Cl2, washedwith water, dried over anhydrous Na2SO4, concd., chromd. on silica gel,GC, elem anal. (FcCOCH2HgOHgOCOCH3);

acetic acid in tetrahydrofuran byproducts: (CH3C(O)O)2Hg, (CH3CO)2O; mercuric acetate dissolved in THF with a drop of AcOH, soln. added dropwise to a stirred soln. of ethynylferrocene at room temp. under N2, 2 h,pptd., stirred further 3 h; filtered off, washed with THF;

acetic acid in acetic acid byproducts: (CH3C(O)O)2Hg, (CH3CO)2O; mercuric acetate in anhydrous acetic acid added dropwise to a stirred soln. of ethynylferrocene, stirred for 1.5 h; filtered off, solvent removed under vacuum, treated with diethyl ether,evapd.;

in 1,2-dichloro-ethane T=80°C; 0.25 h;

methanol; sodium cyanide; mercuric sulphate in methanol; sulfuric acid pptn. by addn. of HgSO4 in H2SO4/CH3OH/H2O, addn. of NaCN in CH2Cl2;;