Results 41 to 50 of about 22,841 (254)

γ-Trimethylsilyl(triphenylsilyl) pyridines in syntheses of silicon-containing pyridinium ylids and indolizines

, 2020
Three N-phenacyl-γ-trimethylsilyl (triphenylsilyl)pyridinium bromides were converted to stable silyl-substituted pyridinium ylids. Six previously unknown silicon-containing indolizines were obtained by two methods, viz., 1,3-dipolar cycloaddition of ...
Saksena N., Savina A.A., Datta Rai G., Prostakov N.S., Varlamov A.V., Maslova L.V.   +5 more
core   +2 more sources

Metal‐Free Active Template: A Straightforward Route to 4‐Aminopyridinium‐Based Rotaxane Molecular Shuttles

Angewandte Chemie, EarlyView.
Leigh's metal‐free active template‐based SNAr of an amine on halogenopyridiniums, in the presence of a crown ether, successfully afforded 4‐aminopyridinium‐containing rotaxanes. Further molecular machinery was carried out by deprotonation‐then‐carbamoylation of the conjugated amino moiety.
Ivaylo Stoyanov, Arie van der Lee, Frédéric Coutrot   +2 more
wiley   +2 more sources

Antithrombotic Effects of Pyridinium Compounds Formed from Trigonelline upon Coffee Roasting

, 2016
Coffee may exert a preventive effect on arterial thrombosis. Trigonelline is one of the most abundant compounds in coffee that undergoes pyrolysis upon roasting of coffee beans.
Wlodzimierz Buczko (1827205), Agnieszka Leszczynska (1827181), Jan Adamus (1827184), Lukasz Piotrowski (1827187), Tomasz Kaminski (1827190), Andrzej Marcinek (1827193), Jerzy Gebicki (1827199), Andrzej Mogielnicki (703339), Bartosz Michalowski (1827196), Bartlomiej Kalaska (703331), Karol Kramkowski (1827202)   +10 more
core   +1 more source

Multidimensional and Multifunctional Laser‐Induced Graphene (LIG) for Point‐of‐Care and Wearable Biosensing, Theranostics, and Bioactive Interfaces Toward Personalized Healthcare and Regenerative Medicine

Advanced Science, EarlyView.
Multidimensional laser‐induced graphene (LIG) spanning from 0D to 3D architectures is comprehensively reviewed for multifunctional biomedical platforms, including biosensing, theranostics, and bioactive interface applications, which highlights its potentials for point‐of‐care diagnostics, wearable health monitoring, smart drug delivery, and tissue ...
Li Zhang, Yurou Yuan, Xiaohong Ding, Wing Cheung Mak   +3 more
wiley   +1 more source

Advances in BODIPY Derivatives for Antibacterial Phototherapy

Angewandte Chemie, EarlyView.
This review systematically summarizes the design strategies and structure‐activity relationships of BODIPY‐based antibacterial phototherapy, covering molecular engineering of small‐molecule photosensitizers and nanoplatforms, bacterial targeting and carrier design, and discussing the challenges and future perspectives associated with clinical ...
Li Lv, Heejeong Kim, Hongchen Zhai, Hanqi Ren, Silu Wang, Cong Sun, Yafu Wang, Hosoowi Lee, Juyoung Yoon, Hua Zhang   +9 more
wiley   +2 more sources

Cucurbit[8]Uril Achieved Single‐Molecule Chiral Transfer to Supramolecular Circularly Polarized Luminescence

Advanced Science, EarlyView.
A single‐molecule cascade supramolecular system comprising L/D‐FPy, CB[8], and SC4AD serves as an efficient light‐harvesting platform. It facilitates cascade energy transfer and chiral transfer to acceptor dyes. Co‐assembly with a PVA matrix produces a multicolor solid film that exhibits enhanced luminescence dissymmetry factors (glum), enabling ...
Yongxue Li, Jie Wu, Weiheng Zhang, Hengzhi Zhang, Wei‐Lei Zhou, Yu Liu   +5 more
wiley   +1 more source

Frontier Advances of Terpyridine–Zn(II) Complexes: From Molecular Design to Smart Functional Materials

Advanced Science, EarlyView.
Tpy–Zn complexes serve as versatile building blocks for the modular assembly of functional materials, including polymers, gels, MOFs, cages, and composites through programmed noncovalent interactions, empowering practical applications in visual molecular recognition, smart functional materials, and photocatalytic transformations. ABSTRACT As one of the
Lixin Duan, Qingshu Zheng, Yifan Fan, Caiyun Fang, Tao Tu   +4 more
wiley   +1 more source

π‐Extended COUPY Fluorophores for Targeted Near‐Infrared Fluorescence and Lifetime Imaging in Live Cells

Angewandte Chemie, EarlyView.
π‐Extended COUPY dyes, obtained by vinylogation of coumarin‐based COUPY scaffolds, shift absorption, and emission deep into the NIR region while preserving compactness and synthetic accessibility. These bright, photostable dyes enable live‐cell imaging, FLIM, and site‐specific peptide conjugation, offering a modular platform for targeted bioimaging and
Diego Abad‐Montero, Manel Bosch, Rodrigo Garcés‐Castellanos, Michael Q. Schottenhamel, Sergio Pedraza‐Arevalo, Alejandro Ibáñez‐Costa, Justo P. Castaño, Tania García‐Becerra, Elena Rebollo, Marta E. Alberto, Antonio Francés‐Monerris, Vicente Marchán   +11 more
wiley   +2 more sources

Aprotic Ionic Liquids: A Framework for Predicting Vaporization Thermodynamics

Molecules, 2022
Ionic liquids (ILs) are recognized as an environmentally friendly alternative to replacing volatile molecular solvents. Knowledge of vaporization thermodynamics is crucial for practical applications.
Sergey P. Verevkin, Dzmitry H. Zaitsau, Ralf Ludwig   +2 more
doaj   +1 more source

Convenient Transformation of Carbonyl Compounds Via Their Hydrazones into Gem-Difluoro Compounds With N-Bromosuccinimide/pyridinium Poly(Hydrogen Fluoride) Or Poly-4-Vinyl-Pyridinium Poly(Hydrogen Fluoride)

, 1990
In situ generated bromine monofluoride (BrF) from N-bromosuccinimide/pyridinium poly(hydrogen fluoride) or poly-4-vinylpyridinium poly(hydrogen fluoride) reacts with hydrazones to give the corresponding gem-difluoro compounds (8 examples) in satisfactory
Reddy, V. Prakash, Li, Xing Ya, Surya Prakash, G. K., Olah, George A.   +3 more
core   +1 more source