NaOH in methanol Fe(ClO4)2*6H2O was added to stirred soln. of salicylaldehyde and AEA inabs. MeOH (molar ratio 1:2:2), after 5 min 0.8 equiv of 4 M NaOH was added, stirred for 5 h at room temp.; volume reduced on rotary evaporator, filtered, washed with cold water and Et2O, recrystd.: dissolved in min. CH2Cl2, hot soln. filtered, boiling cyclohexane added gradually to ratio CH2Cl2/cyclohexane=4:1, dried for17 h at 50°C in vac.;