Methyl di-t-butyl hydroxyhydrocinnamate → 3,9-Bis[2-{3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyloxy}-1,1-dimethylethyl]-2,4,8,10-tetraoxaspiro[5.5]undecane

Participants

Reaction Steps

A mixture of 35.3 g (0.121 mole) of methyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, 15.3 g (0.0503 mole) of 3,9-bis(2-hydroxy-1,1-dimethylethyl)-2,4,8,10-tetraoxaspiro[5.5]undecane and 0.82 g (0.015 mole) of sodium methoxide was reacted, after-treated and purified in the same manner as in Preparation example 1, to obtain 21 g of white crystalline 3,9-bis{2-[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionyloxy]-1,1-dimethylethyl}-2,4,8,10-tetraoxaspiro[5.5]-undecane having a purity of 99% (compound AO-1). m.p., 98°-100° C.

Provenance & Evidence