Results 11 to 20 of about 45,058 (347)
Hexane-1,6-diammonium dinitrate [PDF]
The hexane-1,6-diammonium cation of the title compound, C(6)H(18)N(2) (2+)·2NO(3) (-), lies across a crystallographic inversion centre and shows significant deviation from planarity in the hydro-carbon chain. This is evident from the torsion angle of -64.0°(2) along the N-C-C-C bond and thse torsion angle of -67.1°(2) along the C-C-C-C bonds.
Gert J. Kruger, Charmaine van Blerk
openaire +4 more sources
The first example of the cycloaddition of in situ-generated azomethine imine under microwave conditions is described. The reaction of 6-aryl-1,5-diazabicyclo[3.1.0]hexanes with 1,3-diphenylprop-2-en-1-ones proceeds regio- and stereoselectively giving ...
Alexander P. Molchanov+3 more
doaj +1 more source
Photooxidation of n-Hexanal in Air [PDF]
Dilute mixtures of hexanal in synthetic air (up to 100 ppm) were photolyzed with fluorescent UV lamps (275-380 nm) in air at 298 K. The main photooxidation products, identified and quantitatively analyzed by FTIR spectroscopy, were butene, CO, vinylalcohol and ethanal.
Tadić, Jovan+2 more
openaire +3 more sources
Effect of chlorination on positron binding to hydrocarbons: experiment and theory [PDF]
Measured and calculated positron binding energies are presented for a range of hydrocarbons with up to six carbon atoms (viz., methane, acetylene, ethylene, ethane, propane, butane, and hexane) and their chlorinated counterparts. Both experiment and theory confirm the large effect that the chlorine atoms have on the positron binding energy and the ...
arxiv +1 more source
Exploring the ring-closing metathesis for the construction of the solomonamide macrocyclic core: identification of bioactive precursors [PDF]
New synthetic strategies directed toward the novel cyclopeptides solomonamides have been explored utilizing an olefin metathesis as the key reaction.
Carrillo Fernández, Paloma+7 more
core +3 more sources
When Like Destabilizes Like: Inverted Solvent Effects in Apolar Nanoparticle Dispersions [PDF]
We report on the colloidal stability of nanoparticles with alkanethiol shells in apolar solvents. Small angle X-ray scattering and molecular dynamics simulations were used to characterize the interaction between nanoparticles in linear alkane solvents ranging from hexane to hexadecane, including \SI{4}{\nano\meter} gold cores with hexadecanethiol ...
arxiv +1 more source
The title chlorin, 2PhH2, hydrogen-bonded to dimethylaminopyridine (DMAP), C44H32N4O2·C7H10N2, and its corresponding zinc(II) complex, 2PhZn, axially coordinated to ethylenediamine (EDA), [Zn(C44H30N4O2)]·C2H8N2, were isolated and crystallized by ...
Nivedita Chaudhri+2 more
doaj +1 more source
Multitargeted Imidazoles: Potential Therapeutic Leads for Alzheimer's and Other Neurodegenerative Diseases [PDF]
Alzheimer’s disease (AD) is a complex, multifactorial disease in which different neuropathological mechanisms are likely involved, including those associated with pathological tau and Aβ species as well as neuroinflammation.
Ballatore, Carlo+12 more
core +5 more sources
A reliable method for the synthesis of bis-spirocyclic derivatives of 3-azabicyclo[3.1.0]hexanes through the 1,3-dipolar cycloaddition (1,3-DC) reactions of cyclopropenes to the stable azomethine ylide – protonated form of Ruhemann's purple (PRP) has ...
Alexander S. Filatov+4 more
doaj +1 more source
Toward the total synthesis of spirastrellolide A. Part 3: Intelligence gathering and preparation of a ring-expanded analogue [PDF]
Different methods for the formation of the C.25–C.26 bond of spirastrellolide A (1) are evaluated that might qualify for the end game of the projected total synthesis, with emphasis on metathetic ways to forge the macrocyclic ...
Ceccon, J.+5 more
core +2 more sources