Results 91 to 100 of about 10,137 (277)
Pyridinium N-heteroarylaminides: synthesis of N-heteroaryltetramines based on 1,6-bis(phenoxy)hexane and 1,3-bis(phenoxymethyl)benzene [PDF]
, 2007 The synthesis of a set of new N-heteroaryltetramines is reported. A regioselective alkylation on the N-exo nitrogen of pyridinium N-(heteroaryl)aminide with the corresponding tetrabromo compounds, followed by a clean N–N bond reduction of the ...
Castillo Romero, Rafael +2 more
core +2 more sources
European Journal of Organic Chemistry, Volume 29, Issue 16, 25 April 2026.A sustainable, ligand‐free Pd‐catalyzed borrowing hydrogen protocol in a biodegradable hydrophobic natural deep eutectic solvent (NADES) (thymol/DL‐menthol) enables the N‐alkylation of primary amines with benzylic alcohols under mild, aerobic conditions, allowing efficient reuse of both catalyst and solvent for seven consecutive cycles. The hydrophobic
Maryam Saeb +5 more
wiley +1 more source
A NEW ROUTE FOR THE SYNTHESIS OF 2 AMINOPYRIDINES
Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, 2011 The 2-aminopyridines constitute a very large class of nitrogen heterocycles, which have a great biological activity, such as the antibacterial, anti-inflammatory and analgesics activity, as well as the 2-amino-4-(4-chlorophenyl)-5-oxo-5,6,7,8 ...
Zahira Kibou +5 more
doaj
Structural diversity of different aminomethylpyridinium hexafluoridosilicates
Acta Chimica SlovenicaA series of new aminomethylpyridinium hexafluoridosilicate salts with the formula (RH)2[SiF6] (where R = 2-amino-3-methylpyridine (1), 2-amino-4-methylpyridine (2), 2-amino-5-methylpyridine (3) and 2-amino-6-methylpyridine (4)) were prepared by the ...
Andrej Pevec
doaj +1 more source
Antimicrobial and antioxidative activities of 1-adamantylthio derivatives of 3-substituted pyridines [PDF]
, 2008 Diverse biological activities of sulfur containing pyridines were reported. To investigate for new lead compounds, thus, 1-adamantylthiopyridines bearing 3-substituents (OEt, OAc, NAc2, Br and OH) were prepared and evaluated for antimicrobial and ...
Isarankura-Na-Ayudhya, Chartchalerm +4 more
core
Two new zinc(II) acetates with 3- and 4-aminopyridine [PDF]
, 2016 The synthesis and characterization of two new zinc(II) coordination compounds with 3- and 4-aminopyridine are reported. They were obtained after adding a water solution of $Zn(CH_3COO)_2$ · $2H_2O$ or dissolving solid $Zn(CH_3COO)_2$ · $2H_2O$ in ...
Belaj, Ferdinand +3 more
core +1 more source
Regiodivergent C3 and C4 Amination of Quinolines via Radical and Ionic Pathways
Angewandte Chemie, Volume 138, Issue 16, 13 April 2026.A regiodivergent strategy converts a single N‐aminoquinolinium precursor into either C3‐ or C4‐aminated quinolines. Nucleophile‐induced dearomatization diverges into light‐driven N‐centered radical capture (C3) or base‐promoted SNAr (C4), enabling rapid assembly of aminoquinoline libraries and late‐stage diversification.
Ye‐Eun Kim +3 more
wiley +1 more source
Presence of Nitrites, Nitrates, Nitrosamines in the Eggs of Intensively raised Layers in Abeokuta, Nigeria [PDF]
, 2016 In this study, the presence and concentrations of nitrosamines and their precursors (nitrates and nitrites) in raw table eggs obtained from four layer-farms in Abeokuta, were analysed.
Aduloju, O. S. +4 more
core +2 more sources
Characteristics of weak base-induced vacuoles formed around individual acidic organelles
Folia Histochemica et Cytobiologica, 2011 We have previously found that the weak base 4-aminopyridine induces Brownian motion of acidic organelles around which vacuoles are formed, causing organelle traffic disorder in neurons.
Tadashi Kawakami, Hiromi Hiruma
doaj +1 more source
Cellular and circuit mechanisms underlying spinocerebellar ataxias [PDF]
, 2016 Degenerative ataxias are a common form of neurodegenerative disease that affect about 20 individuals per 100,000. The autosomal dominant spinocerebellar ataxias (SCAs) are caused by a variety of protein coding mutations (single nucleotide changes ...
Meera, P, Otis, TS, Pulst, SM
core +1 more source