Results 51 to 60 of about 4,962 (222)

Diethyl pyrrole-2,5-dicarboxylate [PDF]

, 2020
The title compound has been obtained in moderate yield by a new and unexpected base-induced ring contraction from a 1,4-thiazine precursor. Its X-ray structure showing hydrogen bonded dimers is compared with those of other crystallographically ...
Aitken, R Alan, Bloomfield, Charles, McGeachie, Liam J. R., Slawin, Alexandra M. Z.   +3 more
core   +1 more source

Illuminating Tau Aggregates: Multiscale Approaches for Detection, Imaging, and Understanding

Aggregate, Volume 6, Issue 10, October 2025.
This review presents recent advances in molecular imaging of tauopathies, focusing on tau aggregation mechanisms, structural polymorphism, and imaging strategies. It highlights the development of tau‐selective fluorescent probes and PET tracers and explores emerging techniques such as cryo‐EM and super‐resolution imaging, offering a multiscale ...
Kaustubh R. Bhuskute, Jiayi Fan, Amandeep Kaur   +2 more
wiley   +1 more source

Synthesis of Novel Dihydropyridine‐Iminium Salts Containing a Selenazine Core

Asian Journal of Organic Chemistry, Volume 14, Issue 10, October 2025.
An efficient method to develop novel dihydropyrido[3,2‐e][1,3]selenazines iminium salts. A comparative study of the key reagent selenourea towards thiourea and urea was carried out to assess the contribution of chalcogen to the pathway. DFT (density functional theory) calculations have predicted the optimized minimum energy structure for the hybrid ...
Reinier Lemos, Mauro De Nisco, Yoana Pérez‐Badell, Gabriella Pinto, Marco Morelli, Margarita Suárez, Silvana Pedatella   +6 more
wiley   +1 more source

Synthesis and reactions of aminopropenes, which contains functional groups [PDF]

, 2013
В рамках данной работы осуществлен синтез енаминов, содержащих остатки первичных, вторичных, третичных аминов, а также амидную и тиоамидную группы. Проведено комплексное исследование структуры полученных соединений с помощью спектральных методов, включая
Lugovik, K. I., Луговик, К. И.
core  

Solid‐Phase Synthesis of 1,3,5,6‐Tetra‐Substituted 3,5‐Dihydroimidazo[4,5‐c][1,2]Thiazin‐4(1 H)‐One 2,2‐Dioxide Derivatives

Journal of Heterocyclic Chemistry, Volume 62, Issue 9, Page 938-943, September 2025.
Through an efficient solid‐phase synthesis method, 32 different 1,3,5,6‐tetra‐substituted 3,5‐dihydroimidazo[4,5‐c][1,2]thiazin‐4(1H)‐one 2,2‐dioxide derivatives were synthesized. The derivative library, with a total of four diversities, showed an overall yield of 7%–32% over 8 steps.
Jimin Moon, Hyojin Lee, Sohee Kim, Taeho Lee   +3 more
wiley   +1 more source

Observations sur la glande pylorique des Thaliacés [PDF]

, 1954
La glande pylorique du Pyrosome et du Doliolum est capable de concentrer dans sa lumière une série de colorants ...
Godeaux, J.E.A.
core  

Tuning the Transparency and Exciton Transition of D‐π‐A‐π‐D Type Small Molecules

Chemistry – A European Journal, Volume 31, Issue 45, August 13, 2025.
Literature‐based molecule preselection has been combined with TDDFT calculations to enhance the discovery of transparent organic small molecules. 54 candidates featuring a D‐π‐A‐π‐D architecture were identified, and 24 molecules were selected for synthesis based on their favorable transparency. Among them, 6 molecules exhibit broad optical windows with
Ecem Aydan Alkan, Houssam Metni, Patrick Reiser, Christian Kupfer, Juan S. Rocha‐Ortiz, Anastasia Barabash, Miroslaw Batentschuk, Jens A. Hauch, Pascal Friederich, Christoph J. Brabec   +9 more
wiley   +1 more source

Peripheral blood proteome biomarkers distinguish immunosuppressive features of cancer progression

Molecular Oncology, Volume 19, Issue 8, Page 2233-2248, August 2025.
Immune status significantly influences cancer progression. This study used plasma proteomics to analyze benign 67NR and malignant 4T1 breast tumor models at early and late tumor stages. Immune‐related proteins–osteopontin (Spp1), lactotransferrin (Ltf), calreticulin (Calr) and peroxiredoxin 2 (Prdx2)–were associated with systemic myeloid‐derived ...
Yeon Ji Park, Jae Won Oh, Hyewon Chung, Jung Won Kwon, Yi Rang Na, Kwang Pyo Kim, Seung Hyeok Seok   +6 more
wiley   +1 more source

5,6-Dihydro-2H-pyran-3(4H)-on als Baustein zur Synthese pyrananellierter Heterocyclen [PDF]

, 1984
Während 5,6-Dihydro-2H-pyran-3(4H)-on (3) sich mit ortho-substituierten Phenylcarbonylverbindungen nur in Einzelfällen regioselektiv zu pyrananellierten Heterocyclen umsetzt - z. B.
Eiden, Fritz, Wanner, Klaus Th.
core   +1 more source

Assembling Hexahedral Supramolecular Nano‐Aggregates on Rice Wax Layer Matrices to Promote the Leaf Deposition and Bioavailability of Bactericides for Plant Protections

Advanced Science, Volume 12, Issue 30, August 14, 2025.
To address the problem of off‐target movement and low bioavailability of pesticides, two anisotropic supramolecular building units (BiTA18@β‐CD and BiTA18@γ‐CD) have been invented that can self‐assemble into nano‐sized hexagonal cuboids on the rice microcrystalline matrix. This manipulation realizes the enhanced utilization of bactericides for rice and
Run Yang, Jinghan Yang, Min Liu, Juan Liu, Peiyi Wang   +4 more
wiley   +1 more source