1.1: trichlorophosphate / toluene / 90 °C 2.1: ammonia; ammonium chloride / water; toluene / 4 h / 0 °C 3.1: bromine / methanol / 3 h / 0 - 5 °C 3.2: 4 h / pH 8 4.1: sodium hydroxide / water / 65 - 70 °C View Scheme

sodium carbonate in water T=35 - 40°C; pH=11;

(alkylation);