A new biogenerated Rh-based catalyst for aqueous biphasic hydroformylation

Abstract

A new bio-generated rhodium based system embedded in a peculiar polysaccharide matrix (Rh-EPS), was obtained and purified from cultures of bacterial cells of Klebsiella oxytoca DSM 29614. The product was analyzed with different techniques to obtain information on its structure-property correlation. In order to determine its catalytic activity and selectivity in the aqueous biphasic hydroformylation some olefins were chosen as model substrates, obtaining fine-good results.

Synthesis and Characterization of Rh/B–TNTs as a Recyclable Catalyst for Hydroformylation of Olefin Containing –CN Functional Group

“…The typical hydroformylation of olefins is mainly catalyzed by homogeneous catalysis. Although the homogeneous catalyst system for hydroformylation has high catalytic activity, good selectivity, and other advantages, the transition metal complex used in the catalyst system may dissolve in the product, resulting in difficulties in the recovery of the catalyst [ 6 , 7 ]. Thus, there are two technical and scientific issues; one is the separation of the homogeneous catalyst from the product, and the other is preventing active components from loss.…”

Genomic traits of Klebsiella oxytoca DSM 29614, an uncommon metal-nanoparticle producer strain isolated from acid mine drainages

“…In such conditions, metals often precipitate with EPS in the form of metal nanoparticles embedded in the EPS polymer. This biotechnological peculiarity was used to produce biogenerated “green” metal nanoparticles (NPs) containing: Fe [ 15 , 16 ], Pd, and Rh that were used for catalytic reactions [ 17 – 19 ]; bimetallic Fe-Pd clusters that were used for hydrodechlorination of chlorobenzene [ 20 ] and Aroclor 1260 [ 21 ]; Ag that exerts antimicrobial [ 22 , 23 ] and anticancer [ 24 ] activities. Recently, the Fe(III)-EPS was used as a nutraceutical compound in order to improve growth rate of the commercial fungus Tuber borchii by improving Fe 3+ uptake [ 25 ].…”

Kinetics of hydroformylation of 1‐decene using carbon‐supported ossified HRh(CO)(TPPTS)3 catalyst

“…Various attempts were made to heterogenize some of the industrially relevant homogeneous catalysts for application to different catalytic reactions including hydroformylation. Although the techniques for heterogenization onto solid supports viz anchored catalyst, polymer‐bound catalyst, encapsulated catalyst, supported liquid phase catalyst, (SLPC) supported aqueous phase catalyst (SAPC), supported ionic liquid phase catalyst (SILP), biphasic catalysts using water‐soluble metal complexes of sulfonated, or fluorinated phosphines ligands, gave active catalysts; they were plagued with problems like leaching and deactivation of the catalysts. Although these concepts have drawn interest, with the exception of aqueous‐biphasic catalysis no other approach has been found to be commercially attractive, due to issues of catalyst leaching, catalyst product separation, and poor activity.…”