methanol; water T=40°C;

triethylamine in methanol; water; acetonitrile 2-hydroxybenzaldehyde, aq. MeNH2, trietylamine, Ni(ClO4)2, MeOH, CH3CN placed in a Teflon lined autoclave; refluxed for 2 h at 353 K; filtered; crystd. by standing at room temp.; elem. anal.;