Results 31 to 40 of about 12,453 (230)
Characterization of a Reductively-Activated Elimination Pathway Relevant to the Biological Chemistry of the Kinamycins and Lomaiviticins [PDF]
, 2012 The lomaiviticins (1 and 2) and kinamycins (3–5) are bacterial metabolites with potent antimicrobial and antiproliferative activities. Herein we establish that 1–5 are capable of generating electrophilic acylfulvene intermediates (6) under mildly ...
Ding, Weidong +4 more
core +3 more sources
A Data Resource for Sulfuric Acid Reactivity of Organic Chemicals
Data, 2021 We describe a dataset of the quantitative reactivity of organic chemicals with concentrated sulfuric acid. As well as being a key industrial chemical, sulfuric acid is of environmental and planetary importance.
William Bains +2 more
doaj +1 more source
Journal of Lipid Research, 1977 7 α-Hydroxycholesterol, (22R)-22-hydroxycholesterol and 26-hydroxycholesterol have been quantitated in human meconium. The method used tetrahydrofuran for extraction and solvolysis of the sulfate esters, liquid partition chromatography for the separation
U Lavy, S Burstein, M Gut, N B Javitt
doaj +1 more source
Recovery and Use of Recycled Carbon Fibers from Composites Based on Phenol-Formaldehyde Resins
Recycling, 2022 The technical feasibility of the recycling of specific polymeric composite materials was evaluated. Two types of carbon composites, both with phenol-formaldehyde resin but with different reinforcement, were studied.
Yuliya Kulikova +5 more
doaj +1 more source
Development and validation of a fast gas chromatography combustion isotope ratio mass spectrometry method for the detection of epiandrosterone sulfate in urine [PDF]
, 2020 In doping control, to confirm the exogenous origin of exogenously administered anabolic androgenic steroids (AAS), a gas chromatography combustion isotope ratio mass spectrometry (GC-C-IRMS) analysis is performed.
De Wilde, Laurie +3 more
core +1 more source
From Solvolysis to Self-Assembly [PDF]
The Journal of Organic Chemistry, 2008 My sojourn from classical physical-organic chemistry and solvolysis to self-assembly and supramolecular chemistry, over the last forty years, is described. My contributions to unsaturated reactive intermediates, namely vinyl cations and unsaturated carbenes, along with my decade-long involvement with polyvalent iodine chemistry, especially ...
openaire +2 more sources
Marine Drugs, 2019 Chemical analysis of a southern Australian sponge, Leucetta sp., led to the discovery of a pair of solvolysis adducts, leucettazoles A1 (1a) and B1 (2a), as artifacts of an unprecedented family of 15-membered macrocyclic alkaloid dimers featuring a pair ...
Pritesh Prasad +5 more
doaj +1 more source
Aspen Plus® Modeling and Simulation of an Industrial Biomass Direct Liquefaction Process
Fuels, 2023 The current energy and climate crisis calls for immediate action in replacing fossil fuels with those derived from renewable sources. The Energreen process performs the direct liquefaction of biomass to produce a liquid biofuel for the cement industry ...
Duarte M. Cecílio +3 more
doaj +1 more source
β-Hydroxy carbocation intermediates in solvolyses of di- and tetra-hydronaphthalene substrates
Beilstein Journal of Organic Chemistry, 2010 Solvolysis of trichloroacetate esters of 2-methoxy-1,2-dihydro-1-naphthols shows a remarkably large difference in rates between the cis and trans isomers, kcis/ktrans = 1800 in aqueous acetonitrile.
Jaya S. Kudavalli +1 more
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Ligand Substitution Processes [PDF]
, 1966 From the preface: The subject of the mechanistic study of ligand substitution reactions is currently undergoing an exciting growth. New fast-reaction techniques have removed the upper limit on rates that can be measured, and extension to less ...
Gray, Harry B., Langford, Cooper H.
core +1 more source