Results 131 to 140 of about 26,379 (326)

Testing Differently Substituted Quinoxaline‐2,3‐Dithiolate Ligands in Z‐Stereoretentive Olefin Metathesis Leading to Pheromone of Rice Yellow Stem Borer (Scirpophaga incertulas)

open access: yesEuropean Journal of Lipid Science and Technology, Volume 127, Issue 7, July 2025.
A set of Z‐stereoretentive olefin metathesis catalysts was tested in the synthesis of a pheromone of rice yellow stem borer (Scirpophaga incertulas)—one of the major rice pests in Asia. ABSTRACT Stereoselective olefin metathesis offers access to geometrically well‐defined C–C double bonds and is considered a promising new method for transforming plant ...
Maryana Nadirova   +5 more
wiley   +1 more source

A Systematic Review of Synthetic and Anticancer and Antimicrobial Activity of Quinazoline/Quinazolin‐4‐one Analogues

open access: yesChemistryOpen, Volume 14, Issue 7, July 2025.
Quinazoline represents an important class of heterocycles with diverse medicinal and pharmacological significance. This review systematically examines scholarly efforts toward understanding different synthetic pathways emphasizing the role of metal and non‐metal catalysts including some miscellaneous reagents employed in the synthesis of quinazoline ...
Neha Manhas   +4 more
wiley   +1 more source

Preparation of atomic oxygen resistant polymeric materials [PDF]

open access: yes
Polyphenyl quinoxalines (PPQs) are an important family of high performance polymers that offer good chemical and thermal stability coupled with excellent mechanical properties.
Connell, J. W.   +2 more
core   +1 more source

Development of Double Fence Porphyrins as Self‐Assembled Monolayers for Tin‐Based Perovskite Solar Cells

open access: yesSmall, Volume 21, Issue 27, July 10, 2025.
A series of D–π–A porphyrin derivatives are designed as self‐assembled monolayers (SAMs) to enhance the performance for tin‐based perovskite solar cells. The best SAM has the double fence structure to deliver a great power conversion efficiency of 8.65%, which is the record for porphyrin‐based SAMs in lead‐free perovskite photovoltaics. Abstract The MC‐
Chun‐Hsiao Kuan   +8 more
wiley   +1 more source

Quinoxaline Derivatives. V. Some Reactions of 2-Cyano-3-hydroxyquinoxaline 1-Oxide [PDF]

open access: bronze, 1965
Yusuf Ahmad   +3 more
openalex   +1 more source

GABAB Receptors Mediate Intracellular Calcium Release in Astrocytes of the Prefrontal Cortex

open access: yesEuropean Journal of Neuroscience, Volume 62, Issue 1, July 2025.
We took advantage of GLAST‐promoter driven GCaMP6s expression in astrocytes to study Ca2+ signaling in astrocytes of the young adult prefrontal cortex in response to GABA with confocal Ca2+ imaging. The results show that GABA induces Ca2+ signaling via the stimulation of the metabotropic GABAB receptor in astrocytes.
Jennifer Bostel   +2 more
wiley   +1 more source

Антивирусное и интерферониндуцирующее действие аминоэтоксидифенилов [PDF]

open access: yes, 2015
Проблематика. Новосинтезованим сполукам 4,4′-біс-(2-R-етокси)біфенілам притаманні як інтеркаляція в ДНК, так і противірусна активність та здатність індукувати інтерферон. Мета дослідження.
Shemendyuk, O. V.   +11 more
core  

Benzochalcogenodiazoles, Synthesis, and Applications in Medicinal Chemistry and Photomedicine

open access: yesEuropean Journal of Organic Chemistry, Volume 28, Issue 23, June 23, 2025.
Benzochalcogenodiazoles (BXD) including benzoxadiazoles, benzothiadiazoles, and benzoselenadiazoles are initially mainly designed for optoelectronic materials as electron‐deficient cores. Nevertheless, they are now extending their application to biology.
Jean‐Elie Zheng   +2 more
wiley   +1 more source

Imidazolo [1,2-a] e 1,2,4-triazolo[4,3-a] chinossaline analoghe degli antifolici metotrexato e trimetrexato [PDF]

open access: yes, 2002
Abbiamo progettato una nuova serie di chinossaline, nelle quali l’anello pirrolico è stato sostituito con un’anello imidazolico o con uno triazolico lasciando nelle posizioni 2, 5, 6, 7 e 8 dell’anello chinossalinico gli stessi sostituenti ...
Corona, Paola   +5 more
core  

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