hydrogen fluoride; boron trifluoride T=-30 - -20°C; P=15001.5 Torr; 1 h;

1: 1-amino-2chloro-4-methylbenzene With hydrogenchloride; sodium acetate; copper(II) sulfate; sodium sulfite; sodium nitrite in water T=0°C; 2: formaldehyd With hydroxylamine hydrochloride; sodium acetate in water 3: With hydrogenchloride in water Reflux;

trichlorophosphate 1.) 30 min, room temperature, 2.) 4-4.5 h, boiling water-bath;