Results 51 to 60 of about 44,314 (270)

Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials

Advanced Materials, EarlyView.
A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella, Kobra Azizi, Dirk M. Guldi, Tomás Torres   +3 more
wiley   +1 more source

Dimerization of propargyl and homopropargyl 6-azido-6-deoxy-glycosides upon 1,3-dipolar cycloaddition

Beilstein Journal of Organic Chemistry, 2008
Copper-catalyzed, thermal or microwave promoted 1,3-dipolar cycloaddition (Click Reaction) of 2-propynyl and 3-butynyl 2,3,4-tri-O-acetyl-6-azido-6-deoxy-glycopyranosides in the D-gluco, D-galacto and D-manno series afford the corresponding dimeric ...
Nikolas Pietrzik, Daniel Schmollinger, Thomas Ziegler   +2 more
doaj   +1 more source

Cycloaddition of Cyano-2-pyridones Bearing a Bromo or a Nitro Group [PDF]

, 2007
Cycloaddition of cyano-2(1H)-pyridones bearing a bromo or a nitro group at the pyridone ring with 2,3-dimethyl-1,3-butadiene carried out. Cycloaddition of 5-bromo-4-cyanopyridone gave cis- and trans-cycloadducts (isoquinolone derivative) in total yields ...
Fujita, Reiko, ニシウチ, ヤスヒロ, Hoshino, Masato, 星野, 正人, 高原, 智恵美, Takahara, Chiemi, 西内, 康祐, Nishiuchi, Yasuhiro, 藤田, 礼子, フジタ, レイコ, タカハラ, チエミ, ホシノ, マサト   +11 more
core  

Visible-Light-Induced Dearomatization via [2+2] Cycloaddition or 1,5-Hydrogen Atom Transfer: Regulating Reaction Pathways of Diradicals on Excited States

, 2020
Visible-light-induced dearomatization reaction via energy transfer mechanism is an emerging strategy for the synthesis of highly strained polycyclic molecules. Transient, high-energy diradical species on excited states are typically involved in this type
Xiao, Zhang, Shu-Li, You, Min, Zhu, Chao, Zheng   +3 more
core   +1 more source

Nanomaterial Integration at Liquid–Liquid Interfaces for Green Catalysis

Advanced Materials, EarlyView.
Functional nanomaterials assembled at liquid–liquid interfaces create dual‐role platforms serving as emulsion stabilizers and catalytic sites, offering enhanced reaction kinetics with improved catalyst recovery and recyclability. This review examines design strategies, structure‐performance relationships, and industrial implementation prospects of ...
Bokgi Seo, Jaewon Shin, Minkyoung Jang, Kyoungho Choi, Tengfei Pang, Fangrui Zhong, Jin Woong Kim   +6 more
wiley   +1 more source

Unlocking the Potential of MXene‐Based Electrochemical Biosensors: A Review of Biofunctionalization Strategies and Biosensing Principles

Advanced Materials Technologies, EarlyView.
ABSTRACT Electrochemical biosensors enable the accurate and timely detection of clinical biomarkers, improving healthcare and precision medicine. MXene nanosheets, a class of 2D transition metal carbides, nitrides, and carbonitrides, are promising materials for developing next‐generation electrochemical biosensors due to their unique physicochemical ...
Muhsin Ali, Sharat Chandra Barman, Isobel Steer, Aya H. Alshareef, Dana Alsulaiman   +4 more
wiley   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

Cicloadições [3+4] via cátions oxialílicos: aplicações em sínteses orgânicas [3+4]Cycloadditions via oxyallyl cations: applications in organic synthesis

Química Nova, 1997
Several methodologies for the generation of oxyallyl cations from polybromoketones and other substrates are discussed. The mechanistic aspect of the [3+4] cycloaddition reaction between these cations and dienes leading to the formation of seven membered ...
Antônio Jacinto Demuner, Luiz Cláudio de Almeida Barbosa, Dorila Piló-Veloso   +2 more
doaj   +1 more source

Natural Products Inspired Scaffold Diversification Leads to Unnatural Molecular Warhead and Covalent Strategy to Modulating Protein Function through Electrophilic Bromine Transfer

Advanced Science, EarlyView.
We report a new thiolate‐reactive α,α‐gem‐dibromo lactam warhead that activates transcription factor Nrf2 and demonstrates anti‐inflammatory activities, which have implications in cancer, neurodegeneration, and cardiovascular diseases. RNA‐seq illuminated detailed transcriptional profiles, and chemical reactions with cysteine‐containing compounds ...
Beau R. Brummel, Sofia Kokkaliari, Qiwen Gao, Jinjing Chen, Larissa Costa de Almeida, Srinivasarao Tenneti, Derek A. Leas, Eli Levit, Lewis S. Alexander, Khalil A. Abboud, Pingrong Wei, Michael D. Cameron, James R. Rocca, Ranjala Ratnayake, Donna D. Zhang, Hendrik Luesch, Robert W. Huigens III   +16 more
wiley   +1 more source

Roles of Lewis Acid Catalysts in Diels‐Alder Reactions between Cyclopentadiene and Methyl Acrylate

ChemistryOpen, 2020
The Diels‐Alder reaction of cyclopentadiene with methyl acrylate catalyzed by AlCl3 has been theoretically investigated. M06‐2X level DFT calculations have shown that the formation of two C−C bonds is asynchronous in the cycloaddition both in the endo ...
Prof. Ken Sakata, Prof. Emeritus Dr. Hiroshi Fujimoto   +1 more
doaj   +1 more source