Results 31 to 40 of about 421,150 (255)

Single-pass transformation of syngas into ethanol with high selectivity by triple tandem catalysis

open access: yesNature Communications, 2020
Direct synthesis of ethanol from non-petroleum carbon resources via syngas (CO/H2) is a highly attractive but challenging target. Here, the authors report a triple tandem catalytic system for single-pass conversion of syngas into ethanol with selectivity
Jincan Kang   +7 more
doaj   +1 more source

Convenient method for preparing benzyl ethers and esters using 2-benzyloxypyridine

open access: yesBeilstein Journal of Organic Chemistry, 2008
2-Benzyloxy-1-methylpyridinium triflate (1) is emerging as a mild, convenient, and in some cases uniquely effective new reagent for the synthesis of benzyl ethers and esters. This article provides a revised benzyl transfer protocol in which N-methylation
Susana S. Lopez, Gregory B. Dudley
doaj   +1 more source

Catalytic tetrahydropyranylation of phenols and alcohols using vanadium(V)-substituted polyoxomolybdates [PDF]

open access: yesJournal of the Serbian Chemical Society, 2012
Alcohols and phenols were tetrahydropyranylated in the presence of H7[PMo8V4O40] in good to excellent yields in acetonitrile and under solventfree reaction conditions.
Gharib Ali, Jahangir Manouchehr
doaj   +1 more source

Photoinduced Formation of Hybrid Aryl Pd-Radical Species Capable of 1,5-HAT: Selective Catalytic Oxidation of Silyl Ethers into Silyl Enol Ethers.

open access: yesJournal of the American Chemical Society, 2016
A direct visible light-induced generation of a hybrid aryl Pd-radical species from aryl iodide and Pd(0) is reported to enable an unprecedented (for hybrid Pd-radical species) hydrogen atom-transfer event. This approach allowed for efficient desaturation
Marvin Parasram   +3 more
semanticscholar   +1 more source

Direct conversion of methane to formaldehyde and CO on B2O3 catalysts

open access: yesNature Communications, 2020
Partial oxidation of methane to value-added C1 products remains challenging due to the favorable formation of fully-oxidized CO2. Here, the authors show supported B2O3 catalysts with tri-coordinated BO3 units as the active site are highly selective in ...
Jinshu Tian   +8 more
doaj   +1 more source

Cu/ZrO2 Catalyst Modified with Y2O3 for Effective and Stable Dehydration of Glycerol to Acetol

open access: yesMolecules
Glycerol is a main by-product of biodiesel production, and its further processing is essential for the biorefinery. In this paper, a highly active and stable catalyst for the catalytic dehydration of glycerol to acetol is obtained by modifying a Cu-Zr ...
Zhoubing Liang   +5 more
doaj   +1 more source

ETHER AND CHLOROFORM. [PDF]

open access: yesJournal of the American Medical Association, 1896
I am just now entering upon my fifth decade as a practitioner of medicine, and though it is a humiliating reflection, yet it is a fact, that what I learned of therapeutics during one of these epochs, I had to unlearn in the next, and that with all my delving among the resources of the materia medica, I can now count upon the fingers of both hands ...
openaire   +3 more sources

The effect of weak acid anions on the selective catalytic wet air oxidation of aqueous ammonia to nitrogen

open access: yesScientific Reports, 2017
In this work, the effect of weak acid anions on the ammonia removal has been extensively studied for the process of selective catalytic wet air oxidation (CWAO) of ammonia to nitrogen.
Zidan Wang   +6 more
doaj   +1 more source

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