1: acetonitrile With n-butyllithium in tetrahydrofuran; hexane T=-78°C; 0.25 h; 2: 2-(dimethylamino-methyleneamino)-6-methoxy-benzoic acid in tetrahydrofuran T=-78 - 20°C; 4.5 h; 3: With acetic acid in tetrahydrofuran T=20°C; Further stages.;

1: in tetrahydrofuran T=-78°C; 2: With acetic acid T=20°C;

1.1: 2 h / Heating 2.1: n-BuLi / tetrahydrofuran; hexane / 0.25 h / -78 °C 2.2: tetrahydrofuran / 4.5 h / -78 - 20 °C 2.3: AcOH / tetrahydrofuran / 20 °C View Scheme

1.1: Heating 2.1: tetrahydrofuran / -78 °C 2.2: AcOH / 20 °C View Scheme

trichlorophosphate Heating;