in diethyl ether T=20°C; 2 h;

1: acetone-oxime With trifluoromethanesulfonic acid anhydride; triethylamine in toluene T=-78°C; 0.0833333 h; 2: malononitrile sodium salt in tetrahydrofuran; toluene T=-78 - 20°C;

1: 56 percent / methanol / 6 h / Heating 2: 62 percent / POCl3 / acetonitrile / 2 h / Heating View Scheme

in ethanol 1 h; Heating;