Apatitic tricalcium phosphate was used as support for supported aqueous phase catalysis (SAPC) in the hydroformylation reaction of oct‐1‐ene, at 80 °C in toluene using a dinuclear rhodium complex bearing TPPTS as hydrophilic ligands. The reaction yield is maximum and constant when the hydration rate of the support is ranging from 20 to 35%, before starting to decrease dramatically. The support was examined initially and after catalytic runs by XRD, FTIR, 1H and 31P NMR, SEM and EDS. No change was observed when the hydration rate is less than 35%. Beyond 35%, some decomposition of the support into monetite and stoichiometric apatite occurred; the drop in the yield is essentially due to a loss of droplets of water from the support. The outstanding yield observed with the apatitic tricalcium phosphate, when compared to silica usually used in SAPC, was attributed to the orientation of the catalytic molecule arising from the adsorption of some of the TPPTS ligands onto the hydrophilic surface of apatite.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.