PRODUCTION OF 4-ALKOXYARYL THIOETHER COMPOUND

摘要

PURPOSE:To easily produce the titled compound useful as an additive for heat- sensitive recording material at a low cost suppressing the intrusion of isomers, by reacting a 4-alkoxythiophenol with a sulfonic acid ester of an alcohol or an aliphatic halide. CONSTITUTION:4-Alkoxythiophenol produced by the reduction of a 4- alkoxybenzenesulfonyl chloride is extracted in a nonaqueous solvent with an alkaline aqueous solution. The extracted compound is made to react with a disulfonic acid ester of an alkylenediol or a dihaloalkane in a solvent such as ether at 20-150 deg.C, preferably 40-100 deg.C to obtain the objective compound. The reaction is preferably carried out in an inert gas atmosphere to prevent the coloring of the solution and the formation of disulfite of thiophenols.