Abstract
We report a facile desymmetrization of 1,4‐diethynylbicyclo[2.2.2]octane. One of the acetylene termini was protected by TMS and the desired product was purified by sublimation. It is stable but reactive, as shown by the synthesis of a complex pyridine‐terminated molecular rod containing both a bicyclo[1.1.1]pentane and a bicyclo[2.2.2]octane cage. Six crystal structures of key intermediates are presented.
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