Results 31 to 40 of about 16,660 (215)

Bulky-yet-flexible carbene ligands and their use in palladium cross-coupling [PDF]

open access: yes, 2019
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

open access: yesSynOpen, 2018
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]

open access: yes, 2012
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

open access: yesMongolian Journal of Chemistry, 2014
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]

open access: yes, 2015
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]

open access: yesSerbian Astronomical Journal, 2015
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

Synthesis and Characterization of New Ruthenium (II) Complexes of Stoichiometry [Ru(p-Cymene)Cl2L] and Their Cytotoxicity against HeLa-Type Cancer Cells

open access: yesMolecules, 2022
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]

open access: yes, 2016
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

Unlocking the Potential of MXene‐Based Electrochemical Biosensors: A Review of Biofunctionalization Strategies and Biosensing Principles

open access: yesAdvanced Materials Technologies, EarlyView.
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]

open access: yes, 1946
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
core  

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