2,2'-Methylenebis(4-methyl-6-tert-butylphenol) → HCID 15279035, compound

Participants

Reaction Steps

To a 300-ml four-necked flask equipped with a thermometer, stirring apparatus and condenser were added 34.51 g (0.10 mole) of 2,2'-methylenebis(6-tert-butyl-4-methylphenol), 50 g of toluene and 11.13 g (0.11 mole) of triethylamine. After replacing the air in the container with nitrogen, 10.20 g (0.11 mole) of propionyl chloride was added dropwise. After completion of the dropwise addition, after-treatment was carried out in the same manner as in Comparative example 1 to obtain 35.0 g of 2,2'-methylenebis(6-tert-butyl-4-methylphenol) monopropionate as a white crystal. Melting point, 108°-111° C. Yield, 88.4%.

Provenance & Evidence