PROCESSES FOR PREPARING CYCLOHEXANEDIMETHANOLS AND INTERMEDIATES THEREOF

摘要

A process for preparing 2-substituted-1,1-cyclo-hexanedimethanols which essentially comprises the step of preparing a 1-hydroxymethyl-3-cyclohexene-1-carbaldehyde compound by the Diels-Alder reaction of a beta -substituted- alpha , beta -unsaturated aldehyde with a chain conjugated diene in the presence of an anhydrous tin(IV) halide catalyst; and a process for preparing intermediates for the preparation of the cyclohexanedimethanols. The 2-substituted-1,1-cyclohexanedimethanols obtained by the above process are useful as the raw material of polyester, unsaturated polyester, alkyd, polyurethane, epoxy, or acrylic resins, or functional organic compounds.