(b) Recycling metals uses less energy, thus reduces carbon emissions; Reduces emission of greenhouse gases/ toxic gases/ harmful gases; Uses less water compared with using raw materials; Metals such as lead and mercury are toxic and if placed in landfill, will leach and contaminate the soil ...
Reaction of 9-hydroxyphenalenone1with triflic anhydride allows access to 9-trifluoromethanesulfonyloxyphenalenone2. The reactivity of2is explored in the reactions with pyridine, iodide, and azide. Structural aspects of4, including carbonyl–iodine interactions, are investigated by X-ray crystallography...
Copolymerization of Epoxides and Carbon Dioxide. Evidence Supporting the Lack of Dual Catalysis at a Single Metal Site The chromium tetramethyltetraazaannulene catalyst system, Cr(tmtaa)Cl in the presence of a quaternary organic salt, has been employed to further investigat... DJ Darensbourg,SB Fit...
An analysis of spirophospanium salts and ylides, spirophosporanes, and spiroperphosphoranides are presented in detail. Reactivity of substituents attached to ring carbon, and that of substituents attached to ring heteroatoms including spirophosphorus are also described. Ring synthesis includes all ...
A stable, crystalline carbenium iodide, which possesses a thiocarbonyl group at the β-position, shows ambident reactivities, thereby reacting with a hard nucleophile OH at the carbenium carbon atom and with a soft nucleophile RLi at the thiocarbonyl sulfur atom. Thermal dissociation of the MeLi...
Lipids play a pivotal role in biological processes and lipid analysis by mass spectrometry (MS) has significantly advanced lipidomic studies. While the structure specificity of lipid analysis proves to be critical for studying the biological functions of
For example, fullerenes can be obtained by thermal spraying of carbon-containing soils on an industrial scale, in an inert gas atmosphere, at low pressure, and in the presence of a catalyst. According to experts, fullerene may be the basis for delivery systems and a new class of drugs. ...
02:04Now we're going to fill in all of 2p and we start off with boron, 02:09which has the same configuration as helium, 02:13then 2 electrons in 2s and 1 in 2p. 02:16So 2 in 2s, 02:18here's 2p, 1 in 2p. 02:22Then we go right along the 2nd period....
Hydrothermal carbonisation is comparatively the newest thermo-chemical conversion technique used on a large scale, and is arguably the most promising due to its unique ability to convert biomass with a high moisture content. There exists a variety of val
CheminformIzzo et al., " The Synthesis of 1- (2-Thiazoly)methyl!quinolones. The Reactivity of the Methylene Bridge at Position-1 and its Involvement in the Formation of a Stable Carbon-Nitrogen Ylid ", J. Heterocyclic Chem., vol. 25, pp. 289-295, 1988....