METHOD FOR SYNTHESIZING TYLOXAPOL
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United States of America
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Feb 13, 2025
app pub date -
Dec 20, 2022
filing date -
Dec 20, 2022
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Abstract
The present invention provides a method for synthesizing tyloxapol of formula (I), including the following steps: first reacting p-tert-octylphenol of formula (III) with formaldehyde under alkaline conditions to obtain 2,5-dimethylol p-tert-octylphenol of formula (IV); then reacting 2,5-dimethylol p-tert-octylphenol with p-tert-octylphenol of formula (III) under acidic conditions to obtain the phenolic resin of formula (II); and finally, reacting the phenolic resin of formula (II) with ethylene oxide to obtain tyloxapol of formula (I).
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