Selective oxidation of benzyl alcohol to benzaldehyde, 1‐phenylethanol to acetophenone and fluorene to fluorenol catalysed by iron (II) complexes supported by pincer‐type ligands: Studies on rapid degradation of organic dyes - Singh - 2019 - Applied Organometallic Chemistry - Wiley Online Library Figure 8b) corroborates that the current approach is reasonable. The influence of partial oxygen pressure () on the benzaldehyde yield was investigated by performing the reaction at 1 bar using air ( ≈ 0.21 bar) or pure oxygen ( = 1 bar) as the gas phase in the microreactor (Figure 6c,d). of Chemistry NAME DATE Christina Salama LAB DAY TIME Wednesday 10/5/2015 8:00 - 11:20 am CHEMICAL REACTION unexpectedly selective aerobic oxidation of benzyl alcohol to benzaldehyde with metal/bromide catalysts, The high yield synthesis of benzaldehydes from benzylic alcohols using homogeneously catalyzed aerobic oxidation in acetic acid, The benzaldehyde oxidation paradox explained by the interception of peroxy radical by benzyl alcohol, Benzaldehyde. By performing experiments in the kinetic regime without significant O2 consumption, k values were obtained at 70 and 90°C, from which the activation energy (Ea = 92.6 kJ/mol) was determined with the Arrhenius equation (cf. INTRODUCTION 1.1) Purpose The objective of this experiment is to oxidize benzoin into benzil in an acidic environment. We show that the oxidation of benzyl alcohol can be carried out at 50 °C and below by generating hydrogen peroxide in situ. At least two liquid samples were taken under the steady‐state conditions to ensure a good experimental reproducibility. Thus, gas–liquid flow processing in microreactors allows to intensify reactions with fast kinetics that are often limited by interfacial mass transfer.

Generation of [FeIIIOOH(L1)2](ClO4)2 (3) species, FIGURE S22 Ground state optimized geometry of complex 1 using B3LYP/LANL2DZ, TABLE S1 Cartesian coordinates for complex 1, TABLE S2 Percentage contribution of complex 1 in different orbitals, FIGURE S23 Experimental (red) and theoretical (black) absorption spectra of complex 1 (2x10−5 M) recorded in acetonitrile, TABLE S3 Major transition along with their orbital contribution in complex 1, FIGURE S24 Total electron density plot over the molecule calculated using B3LYP level, FIGURE S25 Ground state optimized geometry of complex 2 using B3LYP/LANL2DZ, TABLE S4 Cartesian coordinates for complex 2, TABLE S5 Percentage contribution of complex 2 in different orbitals, TABLE S6 Major transition along with their orbital contribution in complex 2, FIGURE S26 Complex 2 total electron density plot over the molecule calculated using B3, TABLE S7 Crystal data and data collection parameters for the complex 1 and complex 2, TABLE S8 Selected bond distances (Å) for complexes 2 and 3 with optimized DFT bond parameters in gas phase. FIGURE S27 Packing diagram for the complex 1, showing the short interaction between molecule and the counter ions, FIGURE S28 Packing diagram for the complex 2, showing the short interaction between molecule and the counter ions, SCHEME S2 Degraded product of methylene blue dye, FIGURE S29 Degradation of methylene blue (1x10−3M) in the presence of complex [FeII(L1)2](ClO4)2 (a) and [FeII(L2)2](PF6)2 (b) (1x10−6M) with H2O2 (20 equivalent) in CH3CN, FIGURE S30 Reaction of complex 1 (1x10−6M) with DPPH (1x10−5M) in the presence of H2O2 (20 μM), FIGURE S31 Reaction of complex 2 (2x10−6M) with DPPH (2x10−5M) in the presence of H2O2 (20 μM), FIGURE S32 Geometry optimizations, of intermediates FeIII‐OOH and FeIV=O species.

alcohol to benzaldehyde. 2. Dewetting is the formation of dry spots caused by rupture of the liquid film and is typically observed at low flow rates under which the film thickness becomes very thin (the flow pattern named here as the dewetted slug flow). Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article.

Selective oxidation of benzyl alcohol (BzOH) into benzaldehyde (BzH) is very important in synthetic chemistry. The substrate and catalyst concentrations, partial oxygen pressure and temperature were varied to obtain a simplified kinetic expression at low temperatures (up to ca.

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