in N,N-dimethyl-formamide 1 h; Heating;

1: 35 percent / ethanol / 20 h / Heating 2: 100 percent / methanol / 1.5 h / Heating 3: 100 percent / ethanol / Ambient temperature 4: 33 percent / dimethylformamide / 1 h / Heating View Scheme

1: 100 percent / methanol / 1.5 h / Heating 2: 100 percent / ethanol / Ambient temperature 3: 33 percent / dimethylformamide / 1 h / Heating View Scheme

1: 100 percent / ethanol / Ambient temperature 2: 33 percent / dimethylformamide / 1 h / Heating View Scheme