Styrene oxidation with H2O2 over Ti-containing molecular sieves with MFI, BEA and MCM-41 topologies

Metallic Ag arrays assembled in nanoporous VSB-5 nanocrystals by a simple method: A novel catalyst for the synthesis of olefin aldehyde from styrene

“…Selective oxidation is an active field of research due to the complex chemical processes. The styrene oxidation at side chain is of academic and commercial interests for the synthesis of two important products of styrene oxide and of phenylacetaldehyde [28]. While phenylacetaldehyde could be further polymerized to produce oligomeric aldehyde using costly Wilkinson's catalyst (RhCl(PPh 3 ) 3 ) or other dirhodium complexes catalysts [29], which is interesting in the organic chemical industry.…”

Synthesis and Characterisation of Polymer‐Anchored Oxidovanadium(IV) Complexes and Their Use for the Oxidation of Styrene and Cumene

“…These reaction products are common and have also been identified earlier by other workers. [19][20][21] Scheme 5.…”

“…Benzaldehyde formation may also be facilitated by direct oxidative cleavage of the styrene side chain double bond by a radical mechanism. [19] Formation of other products such as benzoic acid from benzaldehyde is rather slow in all reactions. Similarly the formation of phenylacetaldehyde, a product formed by isomerisation of styrene oxide, is less in all cases.…”

Influence of dopant substitution mechanism on catalytic properties within hierarchical architectures

“…However, despite some successes in the functionalization of bulky active sites, the overall stability and limitations in scope for a wider integration of transition metals, restricted their industrial applicability. For example, tetrahedral Ti(IV) ions were incorporated into the framework of Ti-MCM-41 (mesopore aperture 30 Å), but the resulting material did not evoke the same catalytic potential of its microporous analogue, TS-1 [33,34]. This shortcoming inspired a generation to try to combine the advantages of design in a microporous systems, with the improved diffusion offered by ordered mesoporous networks, to create novel hierarchically porous (HP) catalysts (figure 1) [35][36][37][38][39][40].…”