Results 101 to 110 of about 12,901 (257)

Total Synthesis and Absolute Configuration of the Irregular Tetraterpene Viaticene A

Chemistry – A European Journal, EarlyView.
Viaticenes are tetraterpenes with a unique [6+2]‐connectivity from the springtail Hypogastrura viatica. Here, we report a modular 13‐step total synthesis of viaticene A, featuring stereoselective double‐bond formation, a Cu‐mediated allylic substitution, and Ni/Co‐cocatalyzed vinyl‐alkyl cross‐electrophile coupling as key steps.
Patrick Stamm, Ozan Solak, Johanna Kuhn, Stefan Schulz   +3 more
wiley   +1 more source

Dye displacement assay for saccharide detection with boronate hydrogels

, 2009
Hydrogel spheres, fashioned from an operationally simple mould, that incorporate boronate units were shown to function as saccharide sensors.
Fossey, John, van den Elsen, JMH, D'Hooge, F, Cox, JPL, Morais, MPP, James, TD, Ma, WMJ, Jonathan P. L. Cox, François D’Hooge, Tony D. James, John S. Fossey, Marta P. Pereira Morais, Jean M. H. van den Elsen, Winson M. J. Ma   +13 more
core   +1 more source

Smart Functional Hydrogels: Emerging Platforms for Thermal and Electrochemical Energy Harvesting and Conversion Systems

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The hydrogel exhibits versatile functions, including efficient thermogalvanic conversion under a temperature difference, and acting as a cooling layer/forming a thermally conductive nanoactive composite for thermovoltaic conversion. Additionally, its self‐healing and self‐powered flexibility play a key role in energy storage systems. The growing demand 
Eunah Kang
wiley   +1 more source

Biaryl Product Formation from Cross-coupling in Palladiumcatalyzed Borylation of a Boc Protected Aminobromoquinoline Compound

Molecules, 2004
The palladium catalyzed borylation of a Boc protected aminobromoquinoline compound with bis(pinacolato)diboron yielded a biaryl compound, resulting from cross coupling, as the major product, instead of the intended boronate, even though no strong base ...
Binghe Wang, Jun Yan, Hao Fang
doaj   +1 more source

Navigating the Radical Oxo‐Functionalization of Alkenes Toward Ketones

European Journal of Organic Chemistry, EarlyView.
Straightforward access to complex ketones in a single synthetic step: This Review surveys the latest advances in three‐component alkene 1,2‐oxo‐functionalizations. The opportunities unlocked by the so‐called single‐electron (1e–) logic, including access to a broad pool of radical precursors and carbonyl oxygen atom sources, are highlighted.
Mattia Lepori, Luigi Dolcini, Alexander Bell, Joshua P. Barham   +3 more
wiley   +1 more source

Enantio‐ and Regioselective Cascade Hydroboration of Methylenecyclopropanes for Facile Access to Chiral 1,3‐ and 1,4‐Bis(boronates)

Advanced Science
Chiral 1, n‐bis(boronate) plays a crucial role in organic synthesis and medicinal chemistry. However, their catalytic and asymmetric synthesis has long posed a challenge in terms of operability and accessibility from readily available substrates.
Jian Zhou, Ling Meng, Ziyi Yang, Jun (Joelle) Wang   +3 more
doaj   +1 more source

Transition Metal‐Free C(sp2)─Ge Bond Construction and Downstream Functionalization

European Journal of Organic Chemistry, EarlyView.
Organogermanes combine the advantages of other tetrels such as silicon or tin without their respective downsides in terms of stability and reactivity. This Perspective describes both the transition metal‐free formation of C(sp2)─Ge bonds and the subsequent functionalizative degermylation reactions to access organic compounds of interest.
Baptiste Neil, Maxence Bonnevial, Guillaume Berionni   +2 more
wiley   +1 more source

Photocurable Smart Materials for Femtosecond Laser Micro/Nano‐3D/4D Printing: Toward Interdisciplinary Applications

Interdisciplinary Materials, EarlyView.
This review examines intelligent microsystems fabricated via Fs‐laser two‐photon polymerization, covering design, fabrication compatibility, and actuation methods. It highlights applications in actuators, sensors, micromachines, and soft microrobots, while stressing advances in materials, structures, and system integration.
Chang‐Xu Li, Yu‐Qing Liu, Wei‐Jian Zhong, Dong‐Dong Han, Yong‐Lai Zhang   +4 more
wiley   +1 more source

Discrete, Hexagonal Boronate Ester-Linked Macrocycles Related to Two-Dimensional Covalent Organic Frameworks

, 2016
Discrete, Hexagonal Boronate Ester-Linked Macrocycles Related to Two-Dimensional Covalent Organic ...
Merry K. Smith (2868200), Peter A. Beaucage (2565211), Brian H. Northrop (1393015), Anton D. Chavez (2868203), Brian J. Smith (203813), William R. Dichtel (1368834)   +5 more
core   +1 more source

Small molecule probes for peroxynitrite detection

Redox Biochemistry and Chemistry
Peroxynitrite (ONOO−/ONOOH) is a short-lived but highly reactive species that is formed in the diffusion-controlled reaction between nitric oxide and the superoxide radical anion.
Aleksandra Grzelakowska, Balaraman Kalyanaraman, Jacek Zielonka   +2 more
doaj   +1 more source