Results 31 to 40 of about 16,660 (215)
Bulky-yet-flexible carbene ligands and their use in palladium cross-coupling [PDF]
In recent years, several classes of new N-heterocyclic carbene (NHC) ligands were developed around the concept of flexible steric bulk. The steric hindrance of these ligands brings stability to the active species, while ligand flexibility still allows ...
Cazin, Catherine +2 more
core +1 more source
Synthesis of Functionalized Dihydropyrido[2,3-d]pyrimidines in Aqueous Medium
Synthesis of functionalized 2,3-dihydropyrido[2,3-d]pyrimidin-4(1H)-one from a cascade reaction between 3-formylchromone, malononitrile, diammonium hydrogen phosphate, and aromatic aldehydes in aqueous media is described.
Saeed Balalaie +5 more
doaj +1 more source
Universal Correction of Density Functional Theory to Include London Dispersion (up to Lr, Element 103) [PDF]
Conventional density functional theory (DFT) fails to describe accurately the London dispersion essential for describing molecular interactions in soft matter (biological systems, polymers, nucleic acids) and molecular crystals.
Choi, Jeong-Mo +2 more
core +2 more sources
The Precious metals (Au, Ag, Pt, Pd, Rh) adsorption on the Silicon – organic sorbents
Sorption activity of two types of Silicon-organic sorbents for the previous metals has been studied. A polymer – poly (3- silsesquioxanilpropylthiocarbamate) - 3- silsesquioxanilpropylammonium which was obtained by the hydrolytic poly-condensation ...
G Burmaa +3 more
doaj +1 more source
B(OCH2CF3)3-mediated direct amidation of pharmaceutically relevant building blocks in cyclopentyl methyl ether [PDF]
The use of B(OCH2CF3)3 for mediating direct amidation reactions of a wide range of pharmaceutically relevant carboxylic acids and amines is described, including numerous heterocycle-containing examples.
Badland, M +4 more
core +1 more source
Search of amino group in the Universe: 2-aminopyridine [PDF]
In search for life in the Universe, scientists are interested in identification of molecules having amino (-NH2) group in the interstellar space. The aminoacetonitrile (NH2CH2CN), which is precursor of the simplest amino acid glycine (NH2CH2COOH)
Sharma M.K. +3 more
doaj +1 more source
When the [Ru(p-cymene)(μ-Cl)Cl]2 complex is made to react, in dichloromethane, with the following ligands: 2-aminobenzonitrile (2abn), 4-aminobenzonitrile (4abn), 2-aminopyridine (2ampy) and 4-aminopyridine (4ampy), after addition of hexane, the ...
Marta G. Fuster +5 more
doaj +1 more source
Microwave-assisted Bohlmann–Rahtz synthesis of highly-substituted 2-aminonicotinates [PDF]
Microwave irradiation of 2-carbethoxyacetamidine and an ethynyl ketone under acidic or basic conditions in ethanol at 150 °C for 1.5 h facilitated Bohlmann-Rahtz pyridine synthesis to give highly-substituted ethyl 2 aminonicotinates with total ...
Alnomsy, Ayed +2 more
core +1 more source
ABSTRACT Electrochemical biosensors enable the accurate and timely detection of clinical biomarkers, improving healthcare and precision medicine. MXene nanosheets, a class of 2D transition metal carbides, nitrides, and carbonitrides, are promising materials for developing next‐generation electrochemical biosensors due to their unique physicochemical ...
Muhsin Ali +4 more
wiley +1 more source
The synthesis of potential antimalarials. Derivatives of pantoyltaurine [PDF]
The general hypothesis as to the mode of action of chemotherapeutic agents, which has been formulated by Fildes, Woods, McIlwain, and others (2), offers a rational and useful guide to the design of new drugs. Thus, bacteriostasis is pictured as caused by
Koepfli, J. B. +4 more
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