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Öğe 9,10-Dibromo-N-aryl-9,10-dihydro-9,10-[3,4]epipyrroloanthracene-12,14-diones: Synthesis and Investigation of Their Effects on Carbonic Anhydrase Isozymes I, II, IX, and XII(Wiley-V C H Verlag Gmbh, 2016) Göksu, Haydar; Topal, Meryem; Keskin, Ali; Gültekin, Mehmet S.; Çelik, Murat; Gülçin, İlhami; Supuran, Claudiu T.N-substituted maleimides were synthesized from maleic anhydride and primary amines. 1,4-Dibromodibenzo[e,h]bicyclo-[2,2,2]octane-2,3-dicarboximide derivatives (4a-f) were prepared by the [4+2] cycloaddition reaction of dibromoanthracenes with the N-substituted maleimide derivatives. The carbonic anhydrase (CA, EC 4.2.1.1) inhibitory effects of the new derivatives were assayed against the human (h) isozymes hCA I, II, IX, and XII. All tested bicyclo dicarboximide derivatives exhibited excellent inhibitory effects in the nanomolar range, with K-i values in the range of 117.73-232.87 nM against hCA I and of 69.74-111.51 nM against hCA II, whereas they were low micromolar inhibitors against hCA IX and XII.Öğe Activated carbon nanotube/polyacrylic acid/stearyl alcohol nanocomposites as thermal energy storage effective shape-stabilized phase change materials(Elsevier, 2022) Göksu, Haydar; Aydınlı, Elif; Hekimoğlu, Gökhan; Sarı, Ahmet; Gencel, Osman; Subaşı, Serkan; Tozluoğlu, AyhanStearyl alcohol (SA) as one of organic phase change materials (PCMs) has promising thermal energy storage prospective. However, the leakage issue during solid-liquid phase change period and low heat harvesting and releasing rate significantly attenuates its TES potential. Towards to overcome these drawbacks, the SA was shape stabilized using the cross-linked poly acrylic acid (PAA) and activated single walled carbon nanotubes (aSWCNTs) at three different weigh ratio of 1:1:2, 1:3:4 and 1:5:6 (a-SWCNTs:PAA:SA). The chemical/crystalline and morphologic structures of the produced shape stabilized-nano composite PCMs (SS-NCPCMs) were investigated by FT-IR, XRD and SEM analyses. The latent heat storage (LHS) features and thermal stability of the SSNCPCMs were measured by DSC and TGA techniques. The thermal cycling effect on the LHS properties and chemical structures of the SS-NCPCMs was also estimated. The DSC findings indicated that the SS-NCPCMs had melting temperature of around 55-56 C and latent heat capacity of about 135 J/g. TGA measurements disclosed that the thermal degradation temperatures of the nano composite PCMs were prolonged somewhat compared to the SA. A 500 heating-cooling cycling test revealed that the SS-NCPCMs had great chemical and LHS stability. The heat harvesting and releasing performance of the NCPCMs were considerably shortened compared to those of pure SA. The obtained results exposed that the synthesized SWCNTs/PAA/SA composites can be evaluated as promising LHS materials for thermal management of electronic systems, automobile modules, food carriers, solar PV panels etc.Öğe Bimetallic nanomaterials for direct alcohol fuel cells(Elsevier, 2021) Göksu, Haydar; Bekmezci, M.; Erduran, Vildan; Şen, FatihNanoscience and nanotechnology have grown tremendously in the 21st century. Fascinating advances in nanostructured materials have been happening more and more. A lot of applications have been made in the areas of health, defense, energy, materials chemistry, and even biology. These studies have been increasing gradually. However, sometimes monometallic materials cannot provide the desired cycle efficiency. Due to this situation, bimetallic nanomaterials have come to the fore. Among various liquid alcohol fuels, methanol is a promising fuel candidate due to its high energy density, ease of use, low operating cost. This fuel candidate is getting more and more attention from researchers. The development of electrocatalysts for direct methanol fuel cells (DMFCs) is highly valuable, with new-generation catalysts being developed. For this purpose, bimetallic materials and catalysts were synthesized. Bimetallic nanomaterials are nanoparticles containing two different types of metal atoms in a single material; they are considered heterogeneous catalysts. Bimetallic nanoparticles have many reactive functions, especially in organic chemistry. Also, extensive mechanical studies have been performed in applications ranging from sensors to catalysts. Those nanomaterials have superior and unique properties compared to ordinary materials, and therefore they have been used for the improvement of the new catalyst system with increased efficiency, activity, stability, durability, reusability, and selectivity. Sinfelt introduced the term “bimetallic” at the beginning of the 1980s. The superior properties of bimetallic nanomaterials can be explained by their synergistic effects. In this chapter, information about bimetallic nanomaterials is given, as well as about alcohol oxidation of these particles. © 2021 Elsevier Inc. All rights reserved.Öğe A catalytic regioselective procedure for the synthesis of aryl oximes in the presence of palladium nanoparticles(Taylor & Francis Inc, 2022) Demir, Emine; Orhan, Ersin; Göksu, HaydarThe synthesis of aryl oximes from aryl aldehyde derivatives was carried out using hydroxylamine hydrochloride and aluminum oxy hydroxide-supported palladium (Pd/AlO(OH) nanoparticles. The procedure is revealed via the regioselective synthesis of oxime derivatives in a polar solvent mixture resulting in high yields at room temperature.Öğe Composites of Palladium-Nickel Alloy Nanoparticles and Graphene Oxide for the Knoevenagel Condensation of Aldehydes with Malononitrile(Amer Chemical Soc, 2019) Lolak, Nabih; Kuyuldar, Esra; Burhan, Hakan; Göksu, Haydar; Akocak, Süleyman; Şen, FatihHerein, we have described uniformly dispersed palladium-nickel nanoparticles furnished on graphene oxide (GO-supported PdNi nanoparticles) as a powerful heterogeneous nanocatalyst for the promotion of Knoevenagel reaction between malononitrile and aromatic aldehydes under mild reaction conditions. The successful characterization of PdNi nanoparticles on the GO surface was shown by X-ray diffraction, X-ray photoelectron spectroscopy, high-resolution transmission electron microscopy (HR-TEM), and TEM. GO-supported PdNi nanoparticles, which are used as highly efficient, stable, and durable catalysts, were used for the first time for the Knoevenagel condensation reaction. The data obtained here showed that the GO-supported PdNi nanocatalyst had a unique catalytic activity and demonstrated that it could be reused five times without a significant decrease in the catalytic performance. The use of this nanocatalyst results in a very short reaction time under mild reaction conditions, high recyclability, excellent catalytic activity, and a straightforward work-up procedure for Knoevenagel condensation of malononitrile and aromatic aldehydes.Öğe Conversion of racemic allylic hydroperoxides into corresponding chiral 1/2,3-triols by using catalytic OsO4 and chiral cinchona ligands in the absence of co-oxidant(Scientific Technical Research Council Turkey-Tubitak, 2015) Göksu, Haydar; Gültekin, Mehmet SerdarFor the first time, removal of oxygen atoms from allylic hydroperoxide functionality and reintroduction to the double bond was achieved using catalytic OsO4 and chiral cinchona alkaloid derivatives in an acetone water mixture to give corresponding chiral 1/2,3-triol with an enantioselectivity up to 99% ee. The hydroperoxide group was used as both a co-oxidant and a source of hydroxyl groups. This protocol is thought to have potential to provide opportunities for chiral synthesis of 1/2,3-triols from corresponding allylic hydroperoxides in the absence of co-oxidant in one stage for the first time in the literature.Öğe CoPd alloy nanoparticles catalyzed tandem ammonia borane dehydrogenation and reduction of aromatic nitro, nitrile and carbonyl compounds(Elsevier, 2014) Göksu, Haydar; Can, Hasan; Şendil, Kıvılcım; Gültekin, Mehmet Serdar; Metin, ÖnderAddressed herein is a general and facile route for the reduction of aromatic nitro, nitrile, and carbonyl compounds to the corresponding primary amines and alcohols, respectively, under ambient conditions. Our reduction approach comprises the tandem AB dehydrogenation and hydrogenation of unsaturated organic groups catalyzed by reduced graphene oxide supported Co30Pd70 alloy nanoparticles (rGO-Co30Pd70) in water/methanol mixture (v/v = 7/3) at room temperature. Monodisperse Co30Pd70 alloy NPs were synthesized by using an organic solution phase protocol involving the co-reduction of cobalt(II) acetylacetonate and palladium(II) acetylacetonate in oleylamine and borane-tert-butylamine mixture at 100 degrees C. The colloidal Co30Pd70 NPs were assembled on reduced graphene oxide (rGO-Co30Pd70) before their use as catalysts in the tandem reactions. A variety of aromatic nitro, nitriles, and carbonyl compounds were tested by the rGO-Co30Pd70 catalyzed tandem reaction and all the corresponding primary amines or alcohols were obtained by the yields reaching up to 99% within reaction times of 5-15 min. (C) 2014 Elsevier B.V. All rights reserved.Öğe Eco-friendly hydrogenation of aromatic aldehyde compounds by tandem dehydrogenation of dimethylamine-borane in the presence of a reduced graphene oxide furnished platinum nanocatalyst(Royal Soc Chemistry, 2016) Göksu, Haydar; Yıldız, Yunus; Çelik, Betül; Yazıcı, Melike; Kılbaş, Benan; Şen, FatihIn this study, highly monodisperse platinum nanoparticles supported on reduced graphene oxide in the presence of tripentylamine (TPA) (Pt(0)/TPA@rGO NPs) are used as a stable, isolable, bottleable, long-lived, highly efficient and exceptionally reusable heterogeneous catalyst for eco-friendly hydrogenation of various aromatic aldehyde compounds with unprecendented catalytic performance. Pt(0)/TPA@rGO NPs have been used for the first time for these types of synthesis reactions and these NPs were characterized by transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). Herein, the catalyst has been used for tandem dehydrogenation of dimethylamine-borane (DMAB) and hydrogenation of aromatic aldehyde compounds in aqueous methanol at room temperature in reaction times ranging from 1.0 to 25 min with yields reaching up to 95%. The presented catalytic methodology is highly efficient as well as having exceptional reusability performance. This process can be assessed as an eco-friendly method with both a reusable reduced GO-supported platinum nanocatalyst and a hydrogen source (DMAB).Öğe Evaluation of the inhibitive effect of Diospyros kaki (Persimmon) leaves extract on St37 steel corrosion in acid medium(Elsevier, 2016) Gerengi, Hüsnü; Uygur, İlyas; Solomon, Moses; Yıldız, Mesut; Göksu, HaydarA study was conducted to assess the inhibitive effect of Diospyros kaki leaves extract on St37 steel corrosion in 0.1 M HCl solution. Electrochemical (PDP, EIS, DEIS), chemical, and surface morphological screening (SEM, EDS, FTIR) techniques were used in the study. Results show that D. kaki leaves extract is an excellent inhibitor for St37 steel in HCl solution. Maximum inhibition efficiency of 91% was afforded by the highest studied concentration of the extract from PDP measurements. PDP results reveal that the extract components act principally as cathodic type inhibitor suppressing the reduction of hydrogen ions in the cathodic region of the metal. DEIS results show that the studied systems exhibit non-stationary character and the adsorbed extract components were stable particularly at long exposure time. SEM, EDAX, and FTIR results support experimental results that components of D. kaki leaves extract were adsorbed on St37 surface.Öğe A facile synthesis of vicinal cis-diols from olefins catalyzed by in situ generated MnxOy nanoaggregates(Royal Soc Chemistry, 2015) Dalmızrak, Diğdem; Göksu, Haydar; Gültekin, Mehmet SerdarA novel protocol for the practical and green synthesis of vicinal cis-diols from 10.0 mmol olefins by using 5.0 mmol KMnO4 as oxidant and 30.0 mmol H2O2 as co-oxidant is reported. The presented procedure is easy to carry out and enables the direct transformation of linear and cyclic alkenes to the corresponding vicinal cis-diols. The synthesis of vicinal cis-diols by dihydroxylation of olefins with a KMnO4/H2O2 system was catalyzed by in situ generatedMnxOy nanoaggregates. The use of H2O2 as a co-oxidant is the key for the protocol to synthesize vicinal cis-diols in high yields, because it assists the oxidation of MnxOy nanoaggregates, which have an active role in the oxidation reaction medium.Öğe Handy and highly efficient oxidation of benzylic alcohols to the benzaldehyde derivatives using heterogeneous Pd/AlO(OH) nanoparticles in solvent-free conditions(Nature Research, 2020) Göksu, Haydar; Şen, FatihThe selective oxidation of benzylic alcohols was performed by using commercially available aluminum oxy-hydroxide-supported palladium (Pd/AlO(OH)) nanoparticles (0.5 wt.% Pd, about 3 nm size) under mild conditions. The oxidation method comprises the oxidation of benzyl alcohols catalyzed by aluminum oxy-hydroxide-supported palladium under ultrasonic and solvent-free conditions and a continuous stream of O2. The characterization of aluminum oxy-hydroxide-supported palladium nanocatalyst was conducted by several advanced analytical techniques including scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD), and elemental analysis by ICP-OES. The oxidation of a variety of benzyl alcohol compounds were tested by the aluminum oxy-hydroxide-supported palladium nanoparticles, and all expected oxidation products were obtained by the high conversion yields within 3 hours. The reaction progress was monitored by TLC (Thin-layer chromatography), and the yields of the products were determined by 1H-NMR and 13C NMR analysis. © 2020, The Author(s).Öğe Highly Active and Reusable Pd/AlO(OH) Nanoparticles for the Suzuki Cross-Coupling Reaction(Bentham Science Publ Ltd, 2018) Göksu, Haydar; Zengin, Nursefa; Karaosman, Arife; Şen, FatihBackground: Biphenyl derivatives are an important component of many natural products and used in the treatment of conditions such as anxiety disorders, infections, and insomnia. In addition, the synthesis of these molecules is very important due to their kinase inhibitory effect as well as their antibacterial and antifungal effects. In this study, highly efficient and reusable Pd/AlO(OH) Nanoparticles (NPs) were used as an alternative heterogeneous catalysts system for the coupling reactions. Methods: Pd/AlO(OH) Nanoparticles (NPs) was characterized by SEM, XRD and TEM. Later, Pd/AlO(OH) nanoparticles were performed for coupling reactions. At the end of the reaction, the main products were checked with GC and the GC yield calculated. The desired biaryl products were successfully obtained within 2 h with good yields in the presence of Pd/AlO(OH) nanoparticles. Results: The morphologies of the Pd/AlO(OH) NPs were characterized by scanning electron microscopy (SEM) and x-ray diffraction (XRD). The determination of the appropriate reaction conditions for the desired biaryl products is of crucial importance for successful synthesis. For this purpose, optimization of the conditions for conversion of iodobenzene to biphenyl. was carried out in detail. The reusability of the PdAlO(OH) NPs was also examined for Suzuki Cross-Coupling Reaction. On the other hand, the high temperature and type of catalyst are the factors that make it easier to reach the activation energy. For this reason, the comparison of the designed catalytic system with recently published works are given for Suzuki cross-coupling of bromobenzene with aryl boronic acid. Last but not least, the reaction mechanism of the Suzuki cross-coupling reaction has been entirely identified in the presence of PdAlO(OH) NPs. Conclusion: A novel method was developed for the synthesis of biphenyl derivatives in a short time with high yields by the help of Pd/AlO(OH) NPs at room temperature. As starting materials, neither phenylboronic acid, nor aryl halide derivatives are water soluble, so it was desirable to conduct the reactions in water/isopropyl alcohol as an eco-friendly solvent. Thus, the developed method is both ecofriendly and economical and can be considered as a viable alternative to prior methods appearing in the literature.Öğe Highly Efficient and Monodisperse Graphene Oxide Furnished Ru/Pd Nanoparticles for the Dehalogenation of Aryl Halides via Ammonia Borane(Wiley-V C H Verlag Gmbh, 2016) Göksu, Haydar; Yıldız, Yunus; Çelik, Betül; Yazıcı, Melike; Kılbaş, Benan; Şen, FatihHighly monodisperse graphene oxide-supported Ru/Pd nanoparticles (RuPd@GO NPs) have been reproducibly and easily synthesized by microwave assisted method. RuPd@GO NPs was performed for dehalogenation of arylhalides in the presence of ammonia borane in a mild condition as novel, highly efficient and exceptional reusable heterogeneous catalyst. The novel materials were characterized by transmission electron microscopy (TEM), the high resolution electron micrograph (HRTEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The results showed that the prepared catalysts are highly crystalline, monodisperse and colloidally stable. The current one-pot catalytic process was described as a new methodology for dehalogenation of arylhalides which can be assessed as a quite simple, eco-friendly and highly efficient as well as exceptional reusable. All products were provided with one of the highest yield and the shortest time in the presence of novel RuPd@GO NPs due to the the synergistic effect of Ru and Pd. Our synthesis process comes with a facile and eco-friendly option to RuPd@GO NPs, allowing further scrutiny of current catalysts for numerous other chemical reactions.Öğe Homogeneous catalyst containing Pd in the reduction of aryl azides to primary amines(Indian Acad Sciences, 2022) Cantopcu, E.; Aydınlı, Elif; Göksu, HaydarCommercially available dichloro[2,2'-bis(diphenylphosphino)-1,1'-binaphthyl]palladium(II) (BINAP center dot PdCl2) homogeneous catalyst was used for the reduction of aryl azides to primary amines. The reactions were carried out in water and yields above 95% were obtained in a short time. Sodium borohydride was used as the reducing reagent. A number of aryl azide derivatives have been converted into primary amines, thanks to the hydrogen gas released by sodium borohydride with the help of water and catalyst.Öğe The Inhibition Effect of Mad Honey on Corrosion of 2007-Type Aluminium Alloy in 3.5% NaCl Solution(Univ Fed Sao Carlos, Dept Engenharia Materials, 2014) Gerengi, Hüsnü; Göksu, Haydar; Slepski, PawelThe inhibition effect of mad honey on corrosion of 2007-type aluminium alloy in 3.5% NaCl solution was investigated by Tafel extrapolarisation (TP), electrochemical impedance spectroscopy (EIS) and dynamic electrochemical impedance spectroscopy (DEIS). All the studied parameters exhibited good anti-corrosive properties against corrosion of 2007-type aluminium alloy in the test solution; the corrosion rates decreased with the increase of the mad honey concentration. The surface morphology of the alloy was examined under scanning electron microscopy (SEM) in the absence and presence of the inhibitor. The inhibitory adsorption processes of mad honey on the 2007-type aluminium alloy surfaces conformed to the Langmuir adsorption isotherm.Öğe Metal Organic Frameworks Based Materials for Renewable Energy Applications(Materials Research Forum Llc, 2019) Göksu, Haydar; Zengin, Nursefa; Şen, FatihCrystalline metal-organic frames (MOFs) fall into the category of high potential porous materials that can be used in gas storage, adsorption / separation, adsorption as adsorbent, catalysis, magnetism, sensor design and drug delivery. MOFs are typically formed by self-assembly, where secondary building units (SBUs) are connected with organic ligands to form complex networks. Organic ligands or metallic SBUs may be modified to be critical for their functionality and utility for specific applications in order to control the porosity of MOFs. MOFs are used in renewable energy and environmental applications, application of hydrogen energy, hydrogen storage, storage and conversion of CO2, biogas production, thermal energy storage, rechargeable batteries and supercapacitors and in dye sensitized solar cells.Öğe Nanocatalysts for hydrogen evolution reactions from hydrazine borane(Elsevier, 2020) Kaya, Ertuğrul; Dasdemir, G.; Mustafov, S.D.; Göksu, Haydar; Gerengi, Hüsnü; Şen, F.Today, many energy sources serve humanity. However, most energy sources, especially petroleum products, pose a severe danger to the environment because of the greenhouse gases released after the use of energy, which damage the ozone layer. Hydrogen energy is therefore preferred as a more environmentally friendly energy source. Of course, in this process, solid/liquid hydrogen sources such as NaBH4, NH3BH3, N2H4BH3, and N2H4·H2O are essential for usability. To obtain hydrogen from these sources, nanocatalysts are needed. Thanks to nanocatalysts with a larger surface area, it is possible to obtain hydrogen by a more efficient dehydrogenation. In this chapter, information on the hydrogen production methods and the use of nanocatalysts in hydrogen evolution reactions are compiled. Additionally, the positive and negative aspects of the use of hydrazine borane in hydrogen production were discussed, and environmental and economic considerations were made. © 2021 Elsevier Inc. All rights reserved.Öğe A Novel Method for the Synthesis of Newfangled Asymmetric Schiff Bases from -amino Acids under Ultrasonic Conditions and in Aqueous Medium(Wiley-V C H Verlag Gmbh, 2016) Şendil, Kıvılcım; Tekin, Turgay; Göksu, Haydar; Oğuz, Mehmet; Anıl, Barış; Gültekin, Mehmet SerdarChiral Schiff bases were obtained at high yields via a novel technique. Aryl aldehydes and chiral -amino acids were treated (1) in the presence of H3PO4 in ethanol at 80 degrees C for 24 h, and (2) in the presence of K2CO3 under ultrasonic conditions in an aqueous ethanol medium within 5 min with yields reaching up to 96%. The results showed that the presented methodology under ultrasonic conditions was effective, practical, and eco-friendly compared to that using an acidic medium. The corresponding asymmetric Schiff bases were synthesized for the first time, and were characterized by H-1 and C-13 nuclear magnetic resonance and infrared spectroscopy and high-resolution mass spectrometry.Öğe A novel thiocarbamide functionalized graphene oxide supported bimetallic monodisperse Rh-Pt nanoparticles (RhPt/TC@GO NPs) for Knoevenagel condensation of aryl aldehydes together with malononitrile(Elsevier, 2018) Şen, Betül; Akdere, Esma Hazal; Şavk, Aysun; Gültekin, Emine; Paralı, Özge; Göksu, Haydar; Şen, FatihFunctionalization of the graphene provides various possibilities to improve the use of the graphene and to provide more chemical conversion to the graphene. In order to enhance its chemical and physical properties, the graphite which is mainly functionalized with heteroatom-based functional groups is followed intensively, but often results in the inoculation of heteroatoms as various functional groups. Here we show that the graphene oxide can be mainly functionalized with a single species of sulfur and can be reduced to form a graphene which is ftmctionalized with monothiol at the same time. By the help of thiocarbamide-functionalized graphene oxide (TC@GO) the monodisperse rhodium/platinum nanoparticles (RhPt/TC@GO NPs) have been synthesized as promising catalysts for the Knoevenagel condensation to benzylidenemalononitrile derivatives of aryl aldehydes. The monodisperse RhPt/TC@GO NPs have been prepared via a facile method. The novel thiocarbamide-functionalized graphene oxide (TC@GO) supported rhodium/platinum nanoparticles (RhPt/TC@GO NPs) are identified by characterization techniques such as the Raman spectroscopy, high resolution transmission electron microscopy (HRTEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The spectroscopic and morphological studies of the monodisperse RhPt/TNM@GO NPs indicate the highly crystalline form, well dispersity, ultrafine structure and colloidally stable NPs. After fully characterization of prepared nanoparticles, the novel nanocatalysts have been tried for the Knoevenagel condensation to benzylidenemalononitrile derivatives of aryl aldehydes and show excellent catalytic activity and a yield over 99% by the reaction at room temperature within 8-35 min in the presence of malononitrile and derivatives of aldehyde. As a result, the prepared nanocomposites exhibit very good heterogeneous catalyst properties for Knoevenagel condensation reactions.Öğe One-pot synthesis of 1,2/3-triols from the allylic hydroperoxides catalyzed by zeolite-confined osmium(0) nanoclusters(Elsevier, 2013) Göksu, Haydar; Dalmızrak, Diğdem; Akbayrak, Serdar; Gültekin, Mehmet Serdar; Özkar, Saim; Metin, ÖnderA facile, efficient and eco-friendly method for the one-pot synthesis of 1,2/3-triols from the allylic hydroperoxides were developed by using zeolite-confined osmium(0) nanoclusters as reusable catalyst and without using any co-oxidant (H2O2, (BuOOH)-Bu-t, NMO, etc.) in water/acetone (v/v = 1/4) mixture at room temperature. In this method, the oxygen atom of the allylic hydroperoxide group was transferred to the double bond of the same molecule via zeolite-confined osmium(0) nanoclusters. The method has been successfully applied to various allylic hydroperoxides and the corresponding 1,2/3-triols were obtained in high chemical yield. Moreover, a plausible mechanism was proposed for the catalytic oxidation of allylic hydroperoxide to the respective 1,2/3-triols in the presence of zeolite-Os-0 catalyst gathering all the results collected by testing a variety of allylic hydroperoxides in the presence of zeolite-Os-0 catalyst. (c) 2013 Elsevier B.V. All rights reserved.
