Results 71 to 80 of about 9,130,114 (266)

Morpho‐Anatomical and HPTLC Investigations of Lysimachia nummularia L. (Primulaceae) Grown in Switzerland

Microscopy Research and Technique, EarlyView.
This research provides a complete morphoanatomical description of Lysimachia nummularia, as well as a HPTLC profile. Standard techniques of light and scanning electron microscopies, as well as standard techniques of HPTLC, were used. ABSTRACT Primulaceae are distributed all over the world, encompassing around 2590 species.
Carolina Sabedotti, João Vitor da Costa Batista, Bettina Leonhard, Konrad Urech, Mahsa Ahmadinezhad, Jakob Maier, Stephan Baumgartner, Fabio Boylan, Carla Holandino, Jane Manfron   +9 more
wiley   +1 more source

Synthesis of {3,4-bis-[(2-hydroxy-3-methoxy benzylidene)amino] phenyl}phenyl methanone as a new salen derivative

Molbank, 2004
n ...
M. Zarei, A. A. Jarrahpour
doaj   +1 more source

Unassisted formation of hemiaminal ether from 4-aminopyridine and o-vanillin - experimental and theoretical study

Structural Chemistry, 2018
The reactions between o-vanillin and three isomeric aminopyridines lead to imines of diverse spatial conformation and reactivity. The direct products of these simple reactions carried out in methanol are either imine compounds formed in the reactions of ...
A. Mielcarek, A. Wiśniewska, A. Dołęga   +2 more
semanticscholar   +1 more source

Phenolic composition and multi‐target bioactivities of Globularia alypum extracts across seasons

JSFA reports, EarlyView.
Abstract Background This study investigates the influence of seasonal variation on the phytochemical profile and biofunctional activities of ethanolic leaf extracts from Globularia alypum. Leaves collected across four seasons were extracted with a hydroethanolic solvent (80:20, v/v) and analyzed by LC‐ESI‐MS/MS.
Mohammed Messaoudi, Khalil Guelift, Mokhtar Benmohamed, Khaled Kherraz, Latifa Khattabi, Afaf Khadra Bendrihem, Khaled Aggoun, Barbara Sawicka, Lilya Harchaoui, Mohamed Amine Ferhat, Salah Neghmouche Nacer, Stefania Garzoli   +11 more
wiley   +1 more source

Synthesis of 2-hydroxy-3-methoxy-5-(4-methoxyphenylazo) benzaldehyde. A new aldehyde for the preparation of biologically active molecules.

Molbank, 2004
n ...
M. Zarei, A. R. Esmaeilbeig, A. A. Jarrahpour   +2 more
doaj   +1 more source

Dy2 and Dy4 hydroxo clusters assembled using o-vanillin based Schiff bases as ligands and β-diketone co-ligands: Dy4 cluster exhibits slow magnetic relaxation

Polyhedron, 2018
The reaction of DyCl3.6H2O with the mixed ligand system consisting of o-vanillin based Schiff base ligand H2L [2-(2-hydroxy-3-methoxybenzylideneamino) phenol], dibenzoylmethane (Ph2acac) and acetylacetone (Acac) in the presence of triethylamine as the ...
Ananda Kumar Jami, Junaid Ali, S. Mondal, Joan Homs-Esquius, E. Sañudo, V. Baskar   +5 more
semanticscholar   +1 more source

Differentiation of Plant and Animal‐Derived Cholesterol Using irm‐13C NMR and IRMS

Magnetic Resonance in Chemistry, EarlyView.
Determining and certifying the origin of ingredients, starting materials, and excipients used in manufactured goods like cosmetics and medicines can be difficult. In this report, we describe a robust approach for identifying the origin of cholesterol, a component of myriad consumer products using irm‐13C NMR and IRMS to differentiate plant versus ...
Anika M. Singh, Subir Chakraborty, Remington X. Poulin, R. Thomas Williamson   +3 more
wiley   +1 more source

Structural characterization of a new samarium–sodium heterometallic coordination polymer

Acta Crystallographica Section E: Crystallographic Communications
Lanthanide-containing materials are of interest in the field of crystal engineering because of their unique properties and distinct structure types. In this context, a new samarium–sodium heterometallic coordination polymer, poly[tetrakis(μ2-2-formyl-6 ...
Ashley M. Hastings, Ashley Williams, Robert G. Surbella III, Amy E. Hixon, Ana Arteaga   +4 more
doaj   +1 more source

Robust β‐myrcene block copolymer elastomeric vitrimers

Polymer International, EarlyView.
Myrcene‐based vitrimeric elastomers were compared: statistical (poly(styrene‐stat‐myrcene‐stat‐AAEMA)] versus ‘hard–soft’ diblock (poly(styrene)‐block‐poly(myrcene‐co‐AAEMA)). The diblock's ability to anchor the glassy poly(styrene) blocks in a self‐assembled microstructure was effective – leading to four times higher tensile stress and ten times ...
Chong Yang Du, Farhad Asempour, Milan Marić   +2 more
wiley   +1 more source

A four-armed Schiff base: 6,6′,6′′,6′′′-tetramethoxy-2,2′,2′′,2′′′-[methanetetrayltetrakis(methylenenitrilomethylidyne)]tetraphenol

Acta Crystallographica Section E, 2008
In the structure of the title compound, C37H40N4O8, pentaerythrityltetramine is bonded to four o-vanillin molecules, forming a four-armed Schiff base molecule. These molecules are connected by intermolecular C—H...O hydrogen bonds. Intramolecular C&
Guang-Qi Jiang, Jie Cai, Yun-Qian Zhang, Qian-Jun Zhang   +3 more
doaj   +1 more source