Results 21 to 30 of about 2,406 (182)
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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Solvolysis Study of Cycliciminomitomycins
Chemical and Pharmaceutical Bulletin, 2007 The solvolysis rates for the substituted C(7)-cyclohexylamino- or C(8)-cyclohexyliminomitomycins 8-19 were determined in buffered methanolic solutions (0.06 M bis-Tris.HCl, pH: 5.5) at 25 degrees C and then compared with mitomycin C (1) and porfiromycin.
openaire +3 more sources
Molecules, 2016 5,10-Bistrifluoromethyl substituted β-octamethylporphyrins were synthesized via a scrambling side reaction of a dipyrromethane precursor in the presence of a large excess of trifluoroacetic acid.
Masaaki Suzuki +2 more
doaj +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 ...
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Case Studies in Chemical and Environmental Engineering, 2023 Polyethylene terephthalate (PET) bottles come in various colours depending on the usage or the manufacturer's branding preference. However, post-consumer PET bottles are known to be non-biodegradable, hence the development of various routes to convert ...
O. Sanda +4 more
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Selective Degradation of Polyurethanes in Mixed Plastic Wastes via Ir‐Catalyzed Hydrogenolysis
Angewandte Chemie International Edition, EarlyView.The selective degradation of polyurethanes in mixed plastic wastes with polyesters and polyamides was achieved using H2 as a reactant, enabling simultaneous recovery of diformamides and polyols arising from polyurethanes and separation of polyesters and polyamides without any degradation.
Yuto Yamada +3 more
wiley +1 more source
Журнал органічної та фармацевтичної хімії, 2020 Aim. To find out the possibility of using tertiary substrates as benchmarks for determining the kinetic parameters of the ionizing ability of solvents Y. Results and discussion.
Oleksandr I. Vasylkevych +2 more
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Chemistry – A European Journal, EarlyView.Nitrooxylation—the installation of nitrate esters (–ONO2) has evolved from classical mixed‐acid protocols to catalytic and mechano‐, flow‐, photo‐, and electrochemical strategies. This review delineates ionic and radical manifolds for C–ONO2 bond formation, emphasizing mechanistic control, selected substrate scope, and selectivity.
Jayanta Dey, Dmitry Katayev
wiley +1 more source