Results 21 to 30 of about 57,050 (287)

Pyrrole-Pyridine and Pyrrole-Naphthyridine Hosts for Anion Recognition [PDF]

open access: yesMolecules, 2015
The association constants of the complexes formed by two hosts containing pyrrole, amide and azine (pyridine and 1,8-naphthyridine) groups and six guests, all monoanions (Cl−, CH3CO2−, NO3−, H2PO4−, BF4−, PF6−), have been determined using NMR titrations.
M. García   +7 more
openaire   +7 more sources

Pyrrole Adsorption on the Surface of a BN Nanotube: A Computational Study [PDF]

open access: yesInternational Journal of New Chemistry, 2014
: Electrical sensitivity of a boron nitride nanotube (BNNT) was examined toward pyrrole (C5H6N) molecule by using density functional theory (DFT) calculations at the B3LYP/6-31G (d) level, and it was found that the adsorption energy (Ead) of pyrrole on ...
Maziar Noei   +2 more
doaj   +1 more source

The Intramolecular Photometathesis of Pyrroles. [PDF]

open access: yesChemInform, 2007
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Luke D, Elliott   +3 more
openaire   +2 more sources

蛋白质吡咯加合物与血糖指数升高和糖尿病弥漫性神经病的临床特征相关

open access: yesJournal of Diabetes, 2022
Introduction Diabetic neuropathy is the most prevalent complication of diabetes mellitus. Although the precise etiology of this neurological disorder has yet to be defined, elevated blood glucose promotes anerobic glycolysis; this produces excess ...
Xiao Chen   +13 more
doaj   +1 more source

Basic properties of potassium oxide supported on zeolite y studied by pyrrole-tpd and catalytic conversion of methylbutynol

open access: yesQuímica 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

Synthetic Routes to Coumarin(Benzopyrone)-Fused Five-Membered Aromatic Heterocycles Built on the α-Pyrone Moiety. Part 1: Five-Membered Aromatic Rings with One Heteroatom

open access: yesMolecules, 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

open access: yesMolecules, 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

Synthesis, Hydrolytic Stability and In Vivo Biological Study of Bioconjugates of the Tetrapeptides FELL Containing Pyrrole Moiety

open access: yesBiomedicines, 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

Four pyrrole derivatives used as building blocks in the synthesis of minor-groove binders

open access: yesActa 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

Synthesis and aplication of linear and macrocyclic nitrogen ligand [PDF]

open access: yes, 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

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