Inorganic halide salt catalysts for hydroxyalkylation of phenols or thiophenols
AssigneeThe Dow Chemical Company
InventorPaul E. Strege
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Abstract
Hydroxyalkylphenyl ether or thioether compounds are prepared by reaction of cyclic organic carbonate compounds with phenols or thiophenols in the presence of an alkali metal halide catalyst.
Claims9
In the method of hydroxyalkylation wherein phenol- or thiophenol-containing compounds are reacted with cyclic organic carbonate compounds in the presence of a catalyst followed by recovery of the hydroxyalkylaryl ether or thioether formed, the improvement wherein the reaction is conducted without addition of strong acid or base and the catalyst is an inorganic halide salt selected from a group consisting of potassium fluoride, rubidium fluoride, cesium fluoride, lithium chloride, sodium chloride, potassium chloride, rubidium chloride, cesium chloride, lithium bromide, sodium bromide and potassium bromide.
Dependencies are inferred from the claim text.