hydrazine in ethanol; water Ar-atmosphere; refluxing for 2 h; addn. of H2O, extn. (ether), drying (Na2SO4), evapn.;

in ethanol Ar, hydrazine added to a soln. of Fe compd., refluxed for 2 h; cooled to ambient temp., water added, extd. (diethyl ether), extract dried (Na2SO4), evapd. (vac.) to dryness; elem. anal.;