in tetrahydrofuran mixt. was heated under reflux for 3 h; mixt. was filtered hot, ppt. was washed with THF and THF/hexane, dried in vac., filtrate was kept for 3 days at room temp., filtered, ppt. was washed and dried; elem. anal.;

in chloroform; acetone ligand soln. in CHCl3 and FeCl2 in acetone refluxed for 20 h; ppt. septd., MAS;

HCl in tetrahydrofuran Kinetics; byproducts: H2; under N2, 25.0°C, 0.1 mol*dm-3 (N(n-Bu)4)(BF4); stopped flow spectrophotometry;

CH3OH in tetrahydrofuran under N2, stirred for several min; filtration of pptn., washed with diethyl ether, dried in vac.; elem. anal.;

1: diethyl ether 2: dichloromethane 3: dichloromethane View Scheme

in dichloromethane

sodium methylate in tetrahydrofuran; dimethylsulfoxide-d6 T=20°C; 0.0833333 h; GloveboxInert atmosphere;

in tetrahydrofuran byproducts: MgCl2; dropwise addn. of CpMgCl in THF to (Ph2P(CH2)2PPh2)FeCl2 in THF under Ar at 20°C; 24 h at 20°C;; evapn. under vac.; extn. with toluene at 50°C several times; filtration; crystn. from the filtrate on cooling at -20°C for 10 d; elem. anal.;;