Continuous Rhodium‐Catalyzed Hydroformylation of 1‐Octene with Polyhedral Oligomeric Silsesquioxanes (POSS) Enlarged Triphenylphosphine

An Approach to Chemical Reaction Engineering and Process Intensification for the Lean Aqueous Hydroformylation Using a Jet Loop Reactor

“…Both reactors showed different performance and strengths in the hydroformylation of 1‐octene. The JLR reached very high catalytic activities with TOF s up to 10 960 h −1 , the highest reported for this type of reaction , . On the other hand, the STR obtained higher space time yields of up to 12.6 · 10 −5 kmol m −3 s −1 .…”

Recent Advances in Continuous Rhodium-Catalyzed Hydroformylation

“…To expand the scope of the well-known Ruhrchemie/Rhône-Poulenc (RCH/RP) hydroformylation process to include higher olefins, Müller and Vogt used the molecular weight enlargement (MWE) strategy [33], introducing polyhedral oligomeric silsesquioxanes (POSS) as a versatile soluble support and nanofiltration to facilitate catalyst recycling [34] (Scheme 2). In a continuousflow nanofiltration reactor, the Rh catalyst derived from POSSmodified PPh 3 ligand was employed in the hydroformylation of 1-octene ( Figure 9).…”

“…Synthesis of POSS-enlarged PPh 3 (ref. [34]; Copyright 2010 John Wiley & Sons) In a follow-up report [57], with the same SCF-IL biphasic continuous reaction system (Rh(CO) 2 (acac) and [PrMIM] [TPPMS] in ionic liquid [BMIM][PF 6 ]) as in their first report, Cole-Hamilton and coworkers carried out reactions with more higher alkenes, ranging from 1-octene to 1-dodecene. They studied in detail the effects of temperature, alternative ionic liquids, gas composition, and the long-term stability of the catalyst.…”

Preparation and Molecular Structure of a Cyclopentyl-Substituted Cage Hexasilsesquioxane T6 (T = cyclopentyl-SiO1.5) Starting from the Corresponding Silanetriol

“…Cage silsesquioxanes have attracted much attention in recent years [1,2] owing to their widespread applications for example in catalysis [3], as model systems for silica surfaces [4,5], in the design of superoleophobic surfaces [6], ionic liquids [7], biocompatible materials [8], as well as in polymer chemistry [2]. The synthetic approach towards such octasilsesquioxanes is mainly based on the hydrolytic condensation of trifunctional silanes RSiX 3 , where R is a stable organic substituent and X a reactive moiety (i.e., X = Cl, OMe etc.)…”

“…The synthetic approach towards such octasilsesquioxanes is mainly based on the hydrolytic condensation of trifunctional silanes RSiX 3 , where R is a stable organic substituent and X a reactive moiety (i.e., X = Cl, OMe etc.) [2,9] and catalysts like tetrabutylammonium fluoride (TBAF) have been shown to improve the yields in the presence of certain organic substituent [10][11][12].…”