Phosgene → 2-Ethylhexyloxycarbonyl isocyanate

関与物質

反応条件

反応手順

138.6 g of 2-ethylhexyl carbamate were initially introduced in melted form and 93 g of phosgene were passed into the melt at 80° C. within 3.25 hours, the gas outlet stream being passed through a reflux condenser cooled to -78° C. 800 g of chlorobenzene and 5.0 g of methylstearylformamide were then added, the mixture was heaLed to 120° C., and 48 g of phosgene were passed into the mixture within 3 hours. The mixture was stirred for a further 1 hour at 130° C. and excess phosgene was subsequently blown out using nitrogen. Subsequent distillation produced 135.5 g (=85% of theory) of 2-ethylhexyloxycarbonyl isocyanate having a boiling point of 45°-60° C. at 0.13-0.4 mbar.

情報源と証拠