in ethanol addn. of solid Zn(AcO)2*2H2O to ligand soln.; stirring at elevated temp. up to complete dissoln., 2h; cooling; pptn.; recrystn. (EtOH); elem. anal.;

in methanol Electrochem. Process; Zn anode; working soln.: C11H15NO in MeOH, Et4NClO4 as a conducting additive, at current strength of 40 mA, voltage of 15 V for 1 h at room temp.; ppt. filtered off; recrystd. from EtOH, dried in vac. desiccator; elem. anal.;

in ethanol EtOH soln. of Zn salt added to EtOH soln. of C11H15NO (molar ratio of 1:2), mixt. refluxed for 2 h; on cooling EtOH soln. of CH3ONa added; ppt. filtered off; recrystd. from EtOH; elem. anal.;