Hydroformylation of alkenes by use of rhodium complex catalysts

The PPh3 ligand modified Rh/SiO2 catalyst for hydroformylation of olefins

“…The homogeneous rhodium phosphine complexes, such as conventional HRh(CO)(PPh 3 ) 3 (where PPh 3 is triphenylphosphine) complex, are good hydroformylation catalysts with high activity and high selectivity under mild conditions [6]. However, homogeneous catalysts are difficult to be recovered from products [7,8].…”

Alkyl- und Arylkomplexe des Iridiums und Rhodiums, IX [1] Organorhodiumverbindungen Rh(R)(CO)(PPh3)2 (R = Alkyl, Aryl) und homologe Iridiumalkyle / Alkyl and Aryl Complexes of Iridium and Rhodium, IX [1] Organorhodium Compounds Rh(R)(CO)(PPh3)2 (R = Alkyl, Aryl) and Related Iridium Alkyls

“…Zu 900 mg (1,3 mmol) gepulvertem RhCl(CO)(PPh3)2 (1) [22] in 50 ml THF wurde bei -78 °C innerhalb 30 min unter Rühren eine Lösung von 180 mg (2,1 mmol) Phenyllithium [11] …”

Early Industrial Roots of Green Chemistry and the history of the BHC Ibuprofen process invention and its Quality connection

“…Rh-triphenylphosphine catalysts (Imyanitov and Rudkovskij 1963;Evans et al 1994) substantially lowered the required pressures and further improved the normal/iso selectivity. These new Rh based catalysts were commercialized throughout the industry, including by Celanese at its plant in Bay City Texas.…”