Results 111 to 120 of about 129,275 (339)
Health Hazard Manual for Firefighters [PDF]
, 1990 [Excerpt] Firefighters, as well as victims, can be exposed to a variety of toxic substances during a fire. Some of these toxicants are particularly insidious because they are produced by thermal decomposition before smoke makes a fire ...
Brown, Nellie J.
core +1 more source
, 2017 The "unidentified" infrared emission (UIE) features at 3.3, 6.2, 7.7, 8.6, and 11.3 $\mu$m are ubiquitously seen in various astrophysical regions. The UIE features are characteristic of the stretching and bending vibrations of aromatic hydrocarbons.
Glaser, R. +3 more
core +1 more source
Molecules, 2006 The reactions in benzene of 9-alkyl-3-aminocarbazoles with ethyl-3-oxobutanoateyielded ethyl-3-[(9-alkyl-9H-carbazol-3-yl)amino]but-2-enoate condensation products or N-(9-ethyl-9H-carbazol-3-yl)-3-oxobutanamide acylation products.
Gema Mikulskiene +2 more
doaj +1 more source
Re-evaluating the list of high-production chemicals predicted to become Arctic contaminants [PDF]
, 2010 The large number of historical and current organic chemicals in commerce, and the ability of these compounds to make their way from industrial to remote regions, has resulted in concerted efforts to predict which chemicals have the capacity to migrate ...
Kaya Forest, Sierra Rayne
core +2 more sources
Monoaromatic compounds in ambient air of various cities: A focus on correlations between the xylenes and ethylbenzene [PDF]
, 2001 Speciation of o-xylene, m-xylene, p-xylene and ethylbenzene was performed by gas chromatography from ambient air and liquid fuel samples collected at various locations in 19 cities in Europe, Asia and South America.
Avino, P +5 more
core +1 more source
Intermolecular Enantioselective Nickel‐Catalyzed Arylation of Un‐Activated C(sp3)─H Bond
Angewandte Chemie International Edition, EarlyView.Ni: a new solution for asymmetric C(sp3)─H activation. The stereoselective synthesis of all‐carbon quaternary stereogenic centres is achieved via enantioselective C(sp3)─H arylation using a Ni‐BINOL‐derived catalyst. Rational catalytic cycle design uncovers a new reaction pathway that can efficiently induce chiral information during the stereoselective
Erwan Brunard +4 more
wiley +1 more source
Selective Hydrodemethylation of Methylalkylbenzenes on Potassium Hydride. [PDF]
Angew Chem Int Ed EnglSelective catalytic hydrodealkylation of methylalkylbenzenes on carbon‐supported potassium hydride is reported. The reaction exhibits a reactivity trend of 1° ∼ 2° ∼ 3° < CH3, which is opposite to traditional dealkylation and hydrodealkylation. DFT calculations on the (001) facet of KH with ortho‐ethyltoluene suggest that selectivity is controlled by ...
Tian P +5 more
europepmc +3 more sources
Synthesis and crystal structures of two solvates of 1-{[2,6-bis-(hy-droxy-meth-yl)-4-methyl-phen-oxy]meth-yl}-3,5-bis-{[(4,6-di-methyl-pyridin-2-yl)amino]meth-yl}-2,4,6-tri-ethyl-benzene. [PDF]
Acta Crystallogr E Crystallogr Commun, 2023 Stapf M, Schmidt U, Seichter W, Mazik M.
europepmc +1 more source
Intumescent paints Patent [PDF]
, 1970 Nitroaniline sulfate, intumescent ...
Fohlen, G. M., Parker, J. A.
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Kinetic Resolution in Asymmetric Epoxidation using Iminium Salt Catalysis [PDF]
, 2013 The first reported examples of kinetic resolution in epoxidation reactions using iminium salt catalysis are described, providing up to 99% ee in the epoxidation of racemic cis ...
Allin, Steven M. +7 more
core +1 more source