A simple synthesis of the dispiro[5.2.5.2]hexadecane skeleton was developed. Starting from the cyclohexanedicarbaldehyde 6 the dispirane was prepared in one step. The synthesised dispirodiketone 4 is a key compound for the preparation of a number of new liquid crystalline compounds, as its linear molecular shape is proved by an x-ray structural analysis of the corresponding diketal 10. Additionally the synthesis of the first dispirane 4 with a [5.2.3.2]-linkage is described.