APS-grafted Si-Zr-Ti/Torlon composite hollow fibers were used for cooperative catalysts.
Amine-silanol cooperativity is tuned by adjusting the ZrO2, TiO2, and SiO2 nanoparticles.
Aldol and nitroaldol condensation are very sensitive to amine-silanol cooperativity.
High primary aldol and nitroalcohol yields were obtained in a continuous-flow system.