How is 1,4-Dioxacycloheptadecane-5,17-dione (CAS: 105-95-3) typically synthesized?

1,4-Dioxacycloheptadecane-5,17-dione (CAS: 105-95-3) is typically synthesized through the cyclization of 1,7-dihydroxyheptane in the presence of a strong acid catalyst. The reaction involves dehydration and subsequent condensation to form the dione. The yield is usually around 70-80%, and the process is selective, producing the desired cyclic compound with good purity. Detailed conditions and reactions can be found in organic chemistry literature.