in acetone under N2 Co2(CO)6(HOCH2C2CH2OH) and Fe(CO)5 refluxed in acetone for 10 h; mixt. cooled and filtered, solvent removed in vacuo, residue dissolved in CH2Cl2 and chromed. on tlc preparative plates, eluant light petroleumand 10percent diethyl ether; elem. anal.;