Results 41 to 50 of about 545,247 (209)

The sequential C–H oxidation/asymmetric phosphonylation of primary alcohols to synthesize α-hydroxy phosphonates

open access: yesGreen Synthesis and Catalysis, 2021
A new strategy for the sequential C–H oxidation/asymmetric phosphonylation of primary alcohols has been developed. It involves a combination of Cu(I)/TEMPO/NMI (N-methylimidazole) oxidation, under an air atmosphere, with chiral Al (salalen)-catalyzed ...
Shifu Ying   +3 more
doaj   +1 more source

Roles of Candida albicans Mig1 and Mig2 in glucose repression, pathogenicity traits, and SNF1 essentiality. [PDF]

open access: yes, 2020
Metabolic adaptation is linked to the ability of the opportunistic pathogen Candida albicans to colonize and cause infection in diverse host tissues. One way that C.
Filler, Scott G   +7 more
core   +3 more sources

Reactivity of TEMPO anion as a nucleophile and its applications for selective transformations of haloalkanes or acyl halides to aldehydes [PDF]

open access: yes, 2004
Sodium 2,2,6,6-tetramethylpiperidine-N-oxide (TEMPO−Na+), generated by reduction of TEMPO· with sodium naphthalenide in THF, reacted with alkyl halides or acyl halides to produce O-alkylated or acylated TEMPOs, which were in turn oxidized with ...
Allen   +35 more
core   +1 more source

Synthesis, properties, and activity of MoVTeNbO catalysts modified by zirconia-pillared clays in oxidative dehydrogenation of ethane

open access: yesOpen Chemistry, 2021
Composites comprising MoVTeNbO mixed oxide and zirconia-pillared montmorillonite clays (PilCs) were prepared. XRD and TEM with EDX studies confirmed the preservation of M1 MoVTeNbO phase in these composites responsible for high activity and selectivity ...
Shorayeva Kamshat Abithanovna   +5 more
doaj   +1 more source

Identification of a potent palladium-aryldiphosphine catalytic system for high-performance carbonylation of alkenes

open access: yesNature Communications
The development of stable and efficient ligands is of vital significance to enhance the catalytic performance of carbonylation reactions of alkenes.
Kang Zhao   +9 more
doaj   +1 more source

Preparation of mesoporous Cu/Zn/Ce/Zr/Al catalysts and activity in steam reforming of methanol

open access: yesAIP Advances, 2021
Ammonium carbonate-assisted mechanochemical preparation of Cu-based catalysts has been developed for steam reforming of methanol (SRM). The characteristics of the catalysts were studied by N2 adsorption–desorption, N2O titration, TEM, XRD, XPS, H2-TPR ...
Wei Yu, Jiali Yan, Zhengwei Cui, Na Yang
doaj   +1 more source

Effect of Corn Starch Granules on Stabilizing the Foam Structure of Ultrasonically Modified Whey Isolate Protein

open access: yesFoods, 2022
In this study, the mechanism of ultrasound combined with corn starch granules (CSG) treatment improved the foam properties of whey protein isolates (WPI) and was systematically investigated.
Jingxue Liu   +4 more
doaj   +1 more source

Synthesis, Chemistry and Applications of 5-Hydroxymethyl-furfural And Its Derivatives [PDF]

open access: yes, 2001
The prospect of exciting research activity in the chemistry of furfural derived compounds such as 5-hydroxymethylfurfural (HMF), 2,5-furandicarbaldehyde and 2,5-furan-dicarboxylic acid prompted the writing of this article.
Lewkowski, Jarosław
core   +1 more source

NiCo/Al2O3 nanocatalysts for the synthesis of 5-amino-1-pentanol and 1,5-pentanediol from biomass-derived 2-hydroxytetrahydropyran

open access: yesGreen Chemical Engineering
Al2O3-supported monometallic Ni, Co, and bimetallic Ni–Co nanocatalysts originated from layered double hydroxide precursors were synthesized by co-precipitation method, and used for the synthesis of useful 5-amino-1-pentanol (5-AP) and 1,5-pentanediol (1,
Jian Yang   +8 more
doaj   +1 more source

Methane Activation by Selective Oxidation [PDF]

open access: yesTopics in Catalysis, 2016
The selective activation of methane by oxidation is a topic that has fascinated scientists and engineers for over a century. In this paper some of the recent approaches will be described and discussed. In particular, the use of FeZSM5 as a catalyst for methane oxidation with aqueous hydrogen peroxide will be described.
openaire   +1 more source

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