Process for the preparation of an organomercaptophenol from sulfur, a 2,6-disubstituted phenol, and an activated olefin or an epoxy compound
AssigneeGeneral Electric Company
InventorAllan S. Hay
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Abstract
A process for the preparation of an organomercaptophenol is described which comprises the reaction of sulfur with a 2,6-disubstituted phenol carried out in the presence of (1) a base, (2) an activated olefin or an epoxy compound, (3) and a solvent with a high dielectric constant. The organomercaptophenols produced by this process are useful as monomers in the synthesis of esters, carbonates, ethers, epoxy compounds, among many other chemicals synthesized from monohydric phenols. In addition, the organomercaptophenols are also useful as antioxidants.
Claims11
A process for the preparation of an organomercaptophenol which comprises the reaction of a member of the class consisting of sulfur, an alkali metal sulfide, an alkaline earth metal sulfide, or an ammonium sulfide, with a phenol of the formula ##STR5## wherein independently each R.sup.1 and R.sup.2 is a monovalent substituent selected from the group consisting of hydrocarbon and hydrocarbonoxy radicals, and each R.sup.3 and R.sup.4 is a monovalent substituent selected from the group consisting of hydrogen, hydrocarbon and hydrocarbonoxy radicals, said reaction being carried out in the presence of (1) a base, (2) a member of the class consisting of an activated olefin or an epoxy compound, (3) and a solvent having a dielectric constant greater than about 20.
Dependencies are inferred from the claim text.