Comparison of the Activity of a Rhodium‐Biphephos Catalyst in Thermomorphic Solvent Mixtures and Microemulsions

Abstract

Tunable solvent systems provide optimal reaction conditions for homogeneous catalysis as well as appropriate conditions for separating the product from the catalyst via temperature switches. Two tunable solvent systems are presented based on different thermodynamic concepts, namely thermomorphic multicomponent solvent systems and dispersions of immiscible liquids, stabilized by nonionic surfactants as microemulsions. Both systems were applied for the regioselective hydroformylation of the model substrate 1‐dodecene with a Rhodium/ligand catalyst system. The accessibility of the catalyst for the reactants was compared between the molecularly dispersed mixtures and the colloidally dispersed microemulsion systems which are heterogeneous on the microscopic level.

Multiphasic aqueous hydroformylation of 1-alkenes with micelle-like polymer particles as phase transfer agents

“…A mixture of water and 1-butanol has recently been used to carry out the hydroformylation of methyl 10-undecenoate in a continuous miniplant process with efficient catalyst recycling. 9,10 Another strategy used for the hydroformylation of long chain alkenes catalyzed by a water soluble molecular catalyst is the use of phase transfer agents (PTA). These additives reduce the mass transfer limitation during reaction and are ideally recycled together with the catalyst.…”

Hydroformylation and tandem isomerization–hydroformylation of n-decenes using a rhodium-BiPhePhos catalyst: Kinetic modeling, reaction network analysis and optimal reaction control

“…Recently, the chelating diphosphite ligand BiPhePhos (BP) [10] was studied in the literature intensively because of its capability of double bond isomerization of long-chain n-olefins and high hydroformylation regioselectivity towards linear aldehydes [14][15][16][17][18][19][20].…”

The mission of addition and fission – catalytic functionalization of oleochemicals

“…This recycling concept was successfully transferred to a continuously operated miniplant (Fig. ), which has been initially constructed for the hydroformylation of 1‐dodecene in a TMS system comprising DMF/dodecane with the ligand Biphephos . Both of the reaction systems have been investigated as part of the SFB Transregio 63 “Integrated Chemical Processes in Liquid Multiphase Systems” (InPROMPT) in the collaboration of the TU Berlin, the University of Magdeburg and the TU Dortmund.…”