potassium carbonate in N,N-dimethyl-formamide T=20°C; 24 h; Inert atmosphere;

1: 4-nitrophthalic acid dinitrile; thiophenol With potassium carbonate in dimethyl sulfoxide T=20°C; 0.25 h; Inert atmosphere; 2: potassium carbonate in dimethyl sulfoxide T=20°C; 12 h; Inert atmosphere;

sodium sulfate; urea; MOA in neat (no solvent) heating (160-170°C, 1 h and 200-210°C, 3 h); extraction (chloroform), pptn. from DMF (water addn.); elem. anal.;

NaO-t-am in 3-methyl-1-butanol Heating;