(C2H5)3N in methanol; toluene under N2; to soln. of Co complex and NEt3 in C6H5CH3 dropwise added CH2I2 at 0 °C, added pentane, filtered, washed with pentane, dried in vac., NH4PF6 added, added MeOH, stirred for 10 min; added Et2O, filtered, recrystd. (acetone/Et2O); elem. anal.;

(C2H5)3N in methanol; toluene under N2; to soln. of Co complex and NEt3 in C6H5CH3 dropwise added CH2Br2 at 0 °C, added pentane, filtered, washed with pentane, dried in vac., NH4PF6 added, added MeOH, stirred for 10 min; added Et2O, filtered, recrystd. (acetone/Et2O); elem. anal.;

CO in not given byproducts: P(CH3)3;

in methanol; toluene under N2; soln. of Co complex in toluene treated with equimolar amt. ofP(OMe)3 at 0 °C, then dropwise added CH2Br2, stirred for 1 h, added pentane, filtered, dried in vac., NH4PF6 added, added MeOH, stirred for 10 min; added Et2O, filtered, recrystd. (acetone/Et2O); elem. anal.;

in methanol; toluene under N2; soln. of Co complex in toluene treated with equimolar amt. ofPMe3 at 0 °C, then dropwise added CH2Br2, stirred for 1 h, addedpentane, filtered, dried in vac., NH4PF6 added, added MeOH, stirred for10 min; added Et2O, filtered, recrystd. (acetone/Et2O); elem. anal.;

in methanol; toluene under N2; soln. of Co complex in toluene treated with equimolar amt. ofMeNC at 0 °C, then dropwise added CH2Br2, stirred for 1 h, addedpentane, filtered, dried in vac., NH4PF6 added, added MeOH, stirred for10 min; added Et2O, filtered, recrystd. (acetone/Et2O); elem. anal.;