1-Naphthol → 1-Dichlorophosphoryloxynaphthalene

Participants

Reaction Steps

To a mixture of 113 g. phosphoryl chloride and 0.8 g. pyridine there is added 72 g. alpha-napthol over a one and 1-half hour period at a temperature of 100°C. The temperature is held at 105°-110°C. for one and one-half hours and stripped. Distillation affords 94.6 percent naphthyl phosphorodichloridate and 3.4 percent dinaphthyl phosphorochloridate.

Provenance & Evidence