Results 21 to 30 of about 105,049 (336)
Synthesis and aplication of linear and macrocyclic nitrogen ligand [PDF]
, 2013 Linear and macrocyclic nitrogen ligands have been found wide application during the years. Nitrogen has a much strong association with transition-metal ions because the electron pair is partucularly available for complexing purposes.
Cerisoli, Lucia <1984>
core +1 more source
Química Nova, 2012 We report on the basic properties of zeolite NaY and potassium supported on NaY (K/NaY) assessed by pyrrole-TPD and MBOH transformation. Pyrrole-TPD revealed that impregnation of zeolite NaY with potassium promoted additional adsorption sites for pyrrole
Supamathanon Nuttinee +4 more
doaj +1 more source
Molecules, 2021 This review gives an up-to-date overview of the different ways (routes) to the synthesis of coumarin(benzopyrone)-fused, five-membered aromatic heterocycles with one heteroatom, built on the pyrone moiety. Covering 1966 to 2020.
Eslam Reda El-Sawy +2 more
doaj +1 more source
The Synthesis and Properties of Ladder-Type π-Conjugated Compounds with Pyrrole and Phosphole Rings
Molecules, 2023 The phosphole ring is known as a useful building block for constructing π-conjugated organic materials. Here, we report ladder-type benzophospholo[3,2-b]indole (BPI) derivatives where the phosphole and the pyrrole rings are directly fused.
Minh Anh Truong +3 more
doaj +1 more source
Four pyrrole derivatives used as building blocks in the synthesis of minor-groove binders
Acta Crystallographica Section E: Crystallographic Communications, 2017 The title nitropyrrole-based compounds, C7H8N2O4, (I) (ethyl 4-nitro-1H-pyrrole-2-carboxylate), its derivative C12H14N2O4, (II) [ethyl 4-nitro-1-(4-pentynyl)-1H-pyrrole-2-carboxylate], C15H26N4O3, (III) {N-[3-(dimethyamino)propyl]-1-isopentyl-4-nitro-1H ...
Alan R. Kennedy +3 more
doaj +1 more source
Biomedicines, 2023 Background: Bioconjugates are promising alternatives for the multiple targeting of any disease. Pyrrole heterocycle is well known with many activities and is a building block of a lot of medical drugs. On the other hand, peptides are short molecules with
Boryana Borisova +6 more
doaj +1 more source
Pyrrole-chalcone analogues as DNA binding agents
, 2018 Cancer is a gene mutation in the cell that grows uncontrollably. Many drugs have been successfully developed to treat this disease but could not provide effective solutions for cancer treatment, in which the major problem of these drugs is their ...
Tasnim Munshi (17163985) +7 more
core +3 more sources
Studia Universitatis Babes-Bolyai Chemia, 2017 The synthesis and characterization of Fe@Au and Fe@Au covered with pyrrole and pyrrole functionalized with N-succinimide is presented. The synthesis of Fe@Au nanoparticles, with diameters between 5 -7 nm was performed by the reverse micelles method. The
Maria-Loredana SORAN +4 more
doaj +1 more source
Free-radical cyclization approach to polyheterocycles containing pyrrole and pyridine rings
Beilstein Journal of Organic Chemistry, 2021 A wide range of derivatives with new pyrido[2,1-a]pyrrolo[3,4-c]isoquinoline skeleton was synthesized by free-radical intramolecular cyclization of o-bromophenyl-substituted pyrrolylpyridinium salts using the (TMS)3SiH/AIBN system.
Ivan P. Mosiagin +5 more
doaj +1 more source
Molecules, 2021 Two key factors bear on reaction rates for the conjugate addition of alkenyl boronic acids to heteroaryl-appended enones: the proximity of inductively electron-withdrawing heteroatoms to the site of bond formation and the resonance contribution of ...
Amy Boylan +6 more
doaj +1 more source