The present invention relates to the preparation of substituted or unsubstituted 1,2-bis(4-hydroxyphenyl)-hydroxyaliphatics such as 1,2-bis(4-hydroxyphenyl)-2-hydroxypropanes by reacting substituted or unsubstituted 1,2-bis(4-hydroxyphenyl)-halogen substituted aliphatics such as 1,2-bis(4-hydroxyphenyl)-2-chloropropanes in the presence of a base and water.

La presente invenzione riguarda la preparazione di 1,2-bis(4-hydroxyphenyl)-hydroxyaliphatics sostituito o non sostituito quale 1,2-bis(4-hydroxyphenyl)-2-hydroxypropanes reagendo gli alifatici sostituiti 1,2-bis(4-hydroxyphenyl)-halogen sostituiti o non sostituiti quale 1,2-bis(4-hydroxyphenyl)-2-chloropropanes in presenza di una base e di un'acqua.