Search Results - "Sheldon, R A"

The Baeyer−Villiger Reaction:  New Developments toward Greener Procedures by ten Brink, G.-J, Arends, I. W. C. E, Sheldon, R. A

“…In 1899 the Baeyer-Villager (BV) reaction became one of the most well-known and widely applied reactions in organic synthesis, but is far from being at the end…”
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effect of copper toxicity on the growth and root morphology of Rhodes grass (Chloris gayana Knuth.) in resin buffered solution culture by Sheldon, A.R, Menzies, N.W

“…A solution culture experiment was conducted to examine the effect of Cu toxicity on Rhodes grass (Chloris gayana Knuth.), a pasture species used in mine-site…”
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Lipase-Catalyzed Reactions in Ionic Liquids by Madeira Lau, R, Van Rantwijk, F, Seddon, K. R, Sheldon, R. A

“…Candida antarctica lipase was shown to catalyze alcoholysis, ammoniolysis, and perhydrolysis reactions using the ionic liquids 1-butyl-3-methylimidazolium…”
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Preparation, optimization, and structures of cross-linked enzyme aggregates (CLEAs) by Schoevaart, R., Wolbers, M.W., Golubovic, M., Ottens, M., Kieboom, A.P.G., van Rantwijk, F., van der Wielen, L.A.M., Sheldon, R.A.

“…The broad applicability of the cross‐linking of enzyme aggregates to the effective immobilisation of enzymes is demonstrated and the influence of many…”
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Cross-linked enzyme aggregates with enhanced activity: application to lipases by LOPEZ-SERRANO, P, CAO, L, VAN RANTWIJK, F, SHELDON, R. A

“…Seven commercially available microbial lipases were immobilised as their cross-linked enzyme aggregates (CLEAs). Preparations with enhanced activity were…”
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Biocatalytic transformations in ionic liquids by van Rantwijk, Fred, Madeira Lau, Rute, Sheldon, Roger A

“…Room temperature ionic liquids are non-volatile, thermally stable and highly polar; they are also moderately hydrophilic solvents. Here, we discuss their use…”
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Characterisation of nitrilase and nitrile hydratase biocatalytic systems by BRADY, D, BEETON, A, ZEEVAART, J, KGAJE, C, VAN RANTWIJK, F, SHELDON, R. A

“…Biocatalytic transformations converting aromatic and arylaliphatic nitriles into the analogous related amide or acid were investigated. These studies included…”
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Cross-linked enzyme aggregates (CLEAs): stable and recyclable biocatalysts by Sheldon, R A

“…The key to obtaining an optimum performance of an enzyme is often a question of devising an effective method for its immobilization. In the present review, we…”
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Efficient and Selective Aerobic Oxidation of Alcohols into Aldehydes and Ketones Using Ruthenium/TEMPO as the Catalytic System by Dijksman, Arné, Marino-González, Arturo, Mairata i Payeras, Antoni, Arends, Isabel W. C. E, Sheldon, Roger A

“…The combination of RuCl2(PPh3)3 and TEMPO affords an efficient catalytic system for the aerobic oxidation of a variety of primary and secondary alcohols,…”
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Glycosidase-catalysed synthesis of alkyl glycosides by van Rantwijk, F., Woudenberg-van Oosterom, M., Sheldon, R.A.

“…Glycosidases catalyse the synthesis of anomerically pure alkyl glycosides in one step. In contrast, chemical synthesis of anomerically pure glycosides is…”
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The Stability of Chromium in CrAPO-5, CrAPO-11, and CrS-1 during Liquid Phase Oxidations by Lempers, H.E.B., Sheldon, R.A.

“…Chromium substituted aluminophosphate-5 (CrAPO-5), aluminophosphate-11 (CrAPO-11), and silicalite-1 (CrS-1) were synthesized, characterized, and investigated…”
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New developments in catalytic alcohol oxidations for fine chemicals synthesis by Sheldon, R.A, Arends, I.W.C.E, Dijksman, A

“…New developments in liquid phase catalytic oxidations of alcohols with O 2 and H 2O 2 as the primary oxidant are reviewed. Both homogeneous and heterogeneous…”
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Preparation, Characterization, and Performance of FeZSM-5 for the Selective Oxidation of Benzene to Phenol with N2O by Ribera, A., Arends, I.W.C.E., de Vries, S., Pérez-Ramı́rez, J., Sheldon, R.A.

“…Two isomorphously substituted iron ZSM-5 catalysts with different crystal sizes (2.5 and 0.4 μm) were prepared by hydrothermal synthesis. The samples with a…”
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Selenium-catalyzed oxidations with aqueous hydrogen peroxide. 2. Baeyer-Villiger reactions in homogeneous solution by ten Brink, G J, Vis, J M, Arends, I W, Sheldon, R A

“…Several diselenides were tested for catalytic activity in Baeyer-Villiger reactions with 60% aqueous hydrogen peroxide. Bis[3,5-bis(trifluoromethyl)phenyl]…”
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Study of the Efficiency of Amino-Functionalized Ruthenium and Ruthenacycle Complexes as Racemization Catalysts in the Dynamic Kinetic Resolution of 1-Phenylethanol by Eckert, M., Brethon, A., Li, Y.-X., Sheldon, R. A., Arends, I. W. C. E.

“…The ruthenium‐amino structural motif in ruthenacycles and aminomethylpyridine ruthenium complexes turned out to be a useful basis for the design of readily…”
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Strain-related brain injury in neonatal mice subjected to hypoxia–ischemia by Sheldon, R.Ann, Sedik, Cindie, Ferriero, Donna M

“…The development of transgenic mice has led to an increase in the use of mice as models for human disease. We hypothesized that the degree of brain damage…”
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Neuroprotective effects of a dendrimer-based glutamate carboxypeptidase inhibitor on superoxide dismutase transgenic mice after neonatal hypoxic-ischemic brain injury by Arteaga Cabeza, O., Zhang, Z., Smith Khoury, E., Sheldon, R.A., Sharma, A., Zhang, F., Slusher, B.S., Kannan, R.M., Kannan, S., Ferriero, D.M.

“…The result of a deprivation of oxygen and glucose to the brain, hypoxic–ischemic encephalopathy (HIE), remains the most common cause of death and disability in…”
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Cross-linked aggregates of penicillin acylase: robust catalysts for the synthesis of β-lactam antibiotics by Cao, L., van Langen, L.M., van Rantwijk, F., Sheldon, R.A.

“…A novel method for the immobilization of penicillin G acylase (penicillin amidohydrolase, E.C. 3.5.1.11) is reported. It involves the physical aggregation of…”
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Improved operational stability of peroxidases by coimmobilization with glucose oxidase by van de Velde, Fred, Lourenço, Nídia D., Bakker, Martin, van Rantwijk, Fred, Sheldon, Roger A.

“…The operational stability of peroxidases was considerably enhanced by generating hydrogen peroxide in situ from glucose and oxygen. For example, the total…”
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Chirotechnology: Designing economic chiral syntheses by Sheldon, R. A.

“…The increasing awareness of the importance of chirality in the context of biological activity has stimulated a growing demand for efficient methods for the…”
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