Results 51 to 60 of about 49,489 (310)

Influence of gibberellin inhibitors applied during flowering of nonirrigated 'Hass' avocado trees [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2018
: The objective of this work was to evaluate the effect of different gibberellin biosynthesis inhibitors on shoot growth above the panicle, as well as on fruit yield, size, and shape of nonirrigated 'Hass' avocado (Persea americana) trees. The experiment
Bruna do Amaral Brogio   +5 more
doaj   +2 more sources

Light-controlled aggregation and gelation of viologen-based coordination polymers [PDF]

open access: yesarXiv, 2021
Ditopic bis-(triazole-pyridine)viologens are bidentate ligands that self-assemble into coordination polymers. In such photo-responsive materials, light irradiation initiates photo-induced electron transfer to generate pi-radicals that can self-associate to form pi-dimers.
arxiv  

One pot ‘click’ reactions: tandem enantioselective biocatalytic epoxide ring opening and [3+2] azide alkyne cycloaddition [PDF]

open access: yes, 2010
Halohydrin dehalogenase (HheC) can perform enantioselective azidolysis of aromatic epoxides to 1,2-azido alcohols which are subsequently ligated to alkynes producing chiral hydroxy triazoles in a one-pot procedure with excellent enantiomeric excess.
Campbell-Verduyn, Lachlan S.,   +6 more
core   +2 more sources

Imaging of the calcium activated potassium channel 3.1 (KCa3.1) in vivo using a senicapoc‐derived positron emission tomography tracer

open access: yesArchiv der Pharmazie, Volume 355, Issue 12, December 2022., 2022
The 18F‐labeled derivative [18F]3 of senicapoc was synthesized using the prosthetic group approach with 1‐azido‐2‐[18F]fluoroethane ([18F]6) in a “click” reaction. The biological activity of the new positron emission tomography tracer was evaluated in vitro and in vivo.
Christian P. Konken   +11 more
wiley   +1 more source

Photoredox Processes in the Aggregation and Gelation of Electron-responsive Supramolecular Polymers Based on Viologens [PDF]

open access: yesarXiv, 2022
Viologen-based ditopic bis-pyridinyl-triazole bidentate ligands self-assemble in the presence of palladium ions into supramolecular polymers whose structure is imposed by the directed formation of coordination bonds. Light-irradiation of these electron-responsive supramolecular materials triggers a photo-induced electron transfer yielding isolated {\pi}
arxiv  

Rhodium(II)-catalyzed stereocontrolled synthesis of 2-tetrasubstituted saturated heterocycles from 1-Sulfonyl-1,2,3-triazoles [PDF]

open access: yes, 2014
Rhodium(II) acetate catalyzes the denitrogenative transformation of 4-substituted 1-sulfonyl-1,2,3-triazoles with pendent allyl and propargyl ethers and thioethers to onium ylides that undergo [2,3]-sigmatropic rearrangement to give 2-tetrasubstituted ...
Boyer, Alistair
core   +1 more source

SAR exploration of the non‐imidazole histamine H3 receptor ligand ZEL‐H16 reveals potent inverse agonism

open access: yesArchiv der Pharmazie, Volume 356, Issue 1, January 2023., 2023
ZEL‐H16 (1) has been disclosed to be a high‐affinity non‐imidazole H3R (partial) agonist. However, it was found that 1 acts as an inverse agonist for Gαi in various assays. Concise structure–activity relationship studies, molecular pharmacology, and docking were used to shed more light on the properties of 1.
Gábor Wágner   +12 more
wiley   +1 more source

LC‐MS and High‐Throughput Data Processing Solutions for Lipid Metabolic Tracing Using Bioorthogonal Click Chemistry

open access: yesAngewandte Chemie, EarlyView.
This study introduces an integrated analytical and bioinformatics platform for high‐throughput tracing of lipid metabolism using bioorthogonal alkyne fatty acids and optimized LC‐MS workflow. Applied to human fibrosarcoma cells, the method traced fatty acid metabolism, revealing nuances in sphingolipid routing and metabolic bottlenecks, highlighting ...
Palina Nepachalovich   +7 more
wiley   +2 more sources

Synthesis of alpha-tetrasubstituted triazoles by copper-catalyzed silyl deprotection/azide cycloaddition

open access: yesBeilstein Journal of Organic Chemistry, 2015
Propargylamines are popular substrates for triazole formation, but tetrasubstituted variants have required multistep syntheses involving stoichiometric amounts of metal.
Zachary L. Palchak   +2 more
doaj   +1 more source

Ueber Derivate des Triazols [PDF]

open access: yesJustus Liebigs Annalen der Chemie, 1898
n ...
Manchot, W., Noll, R.
openaire   +3 more sources

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