Phenol → Monoethyl monophenyl 4-methoxyphenylphosphonite

Participants

Reaction Conditions

Reaction Steps

113 g (0.496 mol) of diethyl 4-methoxyphenylphosphonite and 46.6 g (0.496 mol) of phenol were mixed and heated with stirring to 110° C. at 350-400 mbar. Ethanol distilled off during this via a small column. The temperature was then increased stepwise to 150° C., and the vacuum was simultaneously increased to 100 mbar. After completion of the reaction, the batch was cooled and distilled. 105 g were obtained having a boiling point of 159° C. at 0.4 mbar. The yield was thus 77% of theory.

Provenance & Evidence