Self-assembly between 1,4-diazabicyclo[2.2.2]octane and bis(hexafluoroalcohols): solid/liquid phase switching for catalyst recycling

Bis(hexafluoroalcohol) derivatives readily self-assemble with 1,4-diazabicyclo[2.2.2]octane through hydrogen bonding. The DABCO (R) catalysts can be released from these crystalline adducts to promote organic transformations. Regeneration of H-bonds allows facile recovery and reuse of this supramolecular supported catalyst'' (> 10 times).