Phosphorus trichloride → HCID 20082255, compound

Participants

Reaction Conditions

Reaction Steps

890.3 g (4 mol) of 2,4-di-tert-butyl-6-methylphenol, 4.2 g of dimethylformamide and 170.0 g of xylene are introduced into a four-neck flask which has been flushed with nitrogen and is fitted with a thermometer, dropping funnel, reflux condenser and distillation attachment. 274.9 g (2 mol) of phosphorus trichloride are added dropwise with stirring over the course of 1.5 hours at a temperature of 50° C. The reaction mixture is warmed to 130° C. and refluxed at this temperature for 1 hour. The reaction mixture is kept at 120° C. for 1 hour under a vacuum of 0.15 bar. Xylene is subsequently removed by distillation under a greater vacuum. After the vacuum has been broken using nitrogen, 959.5 g (1.9 mol) of the title compound are obtained as supercooled, yellow-orange, clear melt.

Provenance & Evidence