in ethanol; water addition of a solution of 0.002 mol salicylaldehyde and 0.002 mol aniline in 10 ml ethanol drop by drop under stirring to a solution of 0.005 mol VOSO4*2H2O in 20 ml water;; recrystallization from toluene;;

in ethanol recrystn. from EtOH in the presence pyridine; elem. anal.;