Results 61 to 70 of about 2,636 (208)
Base-induced generation of aryl(1,2,3-triazol-1-yl)carbenes from 1-[(N-phenylsulfonyl)benzohydrazonoyl]-1,2,3-triazoles and their ring enlargement to 3-aryl-1,2,4-triazines [PDF]
, 2005 The Bamford-Stevens reactions of 1-[N-(phenylsulfonyl)benzohydrazonoyl]-1,2,3-triazole derivatives, readily available from the 1,3-dipolar cycloadditions of N-(phenylsulfonyl)benzohydrazonoyl azides with enamines, were examined and the transformation ...
Ito, S, Kakehi, A, Oda, S, Tanaka, Y
core +3 more sources
(Hetero)Arene Ring-Fused [1,2,4]Triazines
MolbankSynthetic access to a five (hetero)arene ring-fused 3-phenyl[1,2,4]triazines is described. The resulting compounds were characterized via 1H and 13C NMR, IR, UV–vis spectroscopy and HRMS.
Mahshid Teymouri +2 more
doaj +1 more source
An intramolecular inverse electron demand Diels–Alder approach to annulated α-carbolines
Beilstein Journal of Organic Chemistry, 2012 Intramolecular inverse electron demand cycloadditions of isatin-derived 1,2,4-triazines with acetylenic dienophiles tethered by amidations or transesterifications proceed in excellent yields to produce lactam- or lactone-fused α-carbolines.
Zhiyuan Ma +6 more
doaj +1 more source
Acta Chimica Slovenica, 2016 The reaction of prazolobenzothienopyrimidine-3-carbaldehyde 1 with thiocarbohydrazide afforded the Schiff’s base 3. The latter compound reacted with some electrophilic reagents to give 1,2,4-triazoles 4–6 and 1,2,4-triazines 7–9.
Kamelia El-mahdy +4 more
doaj +1 more source
Редокс превращения и нуклеофильные замещения как возможные метаболические реакции препарата «Триазавирина». Химическое моделирование процессов метаболизма [PDF]
, 2014 В качестве модельных метаболических превращений противовирусного препарата «Триазавирин» и его аналогов – 2-алкилтио‑6-нитро‑1,2,4-триазоло-[5,1-c][1,2,4]триазин‑7-онов 1a-d рассмотрены реакции окисления алкитиогруппы с образованием соответствующих ...
Медведева, Н. Р. +3 more
core +2 more sources
EFSA Journal, Volume 24, Issue 3, March 2026.Abstract Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of the coccidiostat consisting of narasin and diclazuril (Interban®) for chickens for fattening and chickens reared for laying. The FEEDAP Panel concludes that the use of Streptomyces sp. NRRL B‐67771 in the production of
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) +33 more
wiley +1 more source
Preclinical candidate for the treatment of visceral leishmaniasis that acts through proteasome inhibition [PDF]
, 2019 Visceral leishmaniasis (VL), caused by the protozoan parasites Leishmania donovani and Leishmania infantum, is one of the major parasitic diseases worldwide.
Bingham, Ryan +48 more
core +1 more source
Advanced Porous Materials for Maritime Carbon Capture
Advanced Materials, Volume 38, Issue 8, 6 February 2026.Carbon capture from emission sources, such as marine vessels, has attracted significant attention over the years. To achieve this goal, sorbents such as metal–organic frameworks (MOFs), porous polymer networks (PPNs), covalent organic frameworks (COFs), and their post‐synthetic modifications are currently being explored.
Kelechi Festus +6 more
wiley +1 more source
15N-Labelling and structure determination of adamantylated azolo-azines in solution
Beilstein Journal of Organic Chemistry, 2017 Determining the accurate chemical structures of synthesized compounds is essential for biomedical studies and computer-assisted drug design. The unequivocal determination of N-adamantylation or N-arylation site(s) in nitrogen-rich heterocycles ...
Sergey L. Deev +10 more
doaj +1 more source
Molecules, 2011 Novel N-arylpyrazole-containing enaminones 2a,b were synthesized as key intermediates. Reactions of 2a,b with active methylene compounds in acetic acid in the presence of ammonium acetate afforded substituted pyridine derivatives 5a-d.
Sayed M. Riyadh
doaj +1 more source