Results 61 to 70 of about 9,914 (265)

PCN‐700: A Model Platform for Crystallographic Probing of Coordination Behavior in Metal–Organic Frameworks

open access: yesAngewandte Chemie, EarlyView.
Linker installation in PCN‐700 provides a unique platform for precisely modulating coordination environments within a crystalline framework. By enabling controlled incorporation of diverse linkers while maintaining structural integrity, PCN‐700 offers new opportunities to unravel the fundamental principles governing coordination chemistry, including ...
Zongsu Han, Jiatong Huo, Hong‐Cai Zhou
wiley   +2 more sources

Regioselective SN2' Mitsunobu reaction of Morita–Baylis–Hillman alcohols: A facile and stereoselective synthesis of α-alkylidene-β-hydrazino acid derivatives

open access: yesBeilstein Journal of Organic Chemistry, 2014
A highly regioselective SN2' Mitsunobu reaction between Morita–Baylis–Hillman (MBH) alcohols, azodicarboxylates, and triphenylphosphine is developed, which provides an easy access to α-alkylidene-β-hydrazino acid derivatives in high yields and good ...
Silong Xu   +3 more
doaj   +1 more source

Self‐Assembling Peptide‐Adjuvant Conjugate (SaPAC) Platform for Precision Cancer Immunotherapy

open access: yesAdvanced Science, EarlyView.
A self‐assembling peptide–adjuvant conjugate links neoantigens to TLR7 agonism, forming cationic nanoparticles that enhance lymph‐node retention, dendritic‐cell activation, and antitumor T‐cell immunity. This chemically defined platform shows how synchronized antigen and innate stimulation can be adapted across melanoma, bladder cancer, and triple ...
Yang‐Fan Wu   +15 more
wiley   +1 more source

Interfacial Tandem Catalysis Over a CuSn(OH)6/Co Heterostructure Enables Efficient Electroreduction of Nitrate to Ammonia

open access: yesAdvanced Science, EarlyView.
Interfacial tandem catalysis is developed for efficient electrochemical reduction of NO3− to NH3 over a CuSn(OH)6/Co heterostructure. CuSn(OH)6 accelerates the rate‐determining NO3−‐to‐*NO2 conversion, whereas Co promotes H2O dissociation to enhance *H supply for the rapid hydrogenation of *NO2 intermediate to NH3.
Yuan‐Yuan Hei   +7 more
wiley   +1 more source

Cross‐scale Material‐Structure Synergy for 2D Metamaterials: Toward Customizable Intelligent Electromagnetic Manipulation in Multiphysics Fields

open access: yesAdvanced Science, EarlyView.
Recent advances in metasurface‐enabled low‐observable technologies are reviewed from the perspective of cross‐scale material–structure synergy. Electromagnetic, thermal, optical, and acoustic stealth are highlighted together with dynamic tuning, programmable coding, data‐driven inverse design, artificial intelligence, multispectral compatibility, and ...
Shuhao Wang   +5 more
wiley   +1 more source

Critical Roles of O‐Acetylation Revealed by Synthetic Trisaccharide Antigens for a Broad‐Spectrum Anti‐Salmonella Vaccine

open access: yesAdvanced Science, EarlyView.
A synthetic glycoconjugate vaccine based on a diacetylated Salmonella trisaccharide elicits broadly protective antibodies against four major human pathogenic serovars. Mechanistic studies identify 2,3‐di‐O‐acetylation of rhamnose as a critical determinant of antigen recognition and breadth of protection, establishing a new strategy for broad‐spectrum ...
Xingling Pan   +7 more
wiley   +1 more source

Solid acidic FeCl3/Bentonite catalyzed solvent-free condensation: Synthesis, spectral studies and antimicrobial activities of some aryl hydrazine Schiff’s bases [PDF]

open access: yes, 2016
Some aryl hydrazide derivatives have been synthesized including 1-(3-chloro-4-nitrophenyl)-2-(3-substituted benzylidene) hydrazines by  FeCl3/Bentonite catalyzed solvent-free  condensation of  substituted phenyl hydrazine and aldehydes under microwave ...
Ananthi, Vadamalai   +3 more
core   +2 more sources

Tailoring Electronic Structure of NbB2 Nanorods Through Selenium Incorporation for Synergistically Enhanced Hydrogen Evolution and Triboelectric Energy Harvesting

open access: yesAdvanced Science, EarlyView.
Selenium incorporation modulates the electronic structure of niobium diboride (Se‐NbB2) nanorods, enhancing the active site density and resulting in superior hydrogen evolution performance for sustainable energy applications. ABSTRACT The sluggish hydrogen evolution reaction (HER) kinetics of non‐noble‐metal catalysts remain a major challenge for ...
Shalmali R Burse   +10 more
wiley   +1 more source

Rhodium-Catalyzed Addition–Cyclization of Hydrazines with Alkynes: Pyrazole Synthesis via Unexpected C–N Bond Cleavage

open access: yes, 2016
Rhodium-catalyzed addition–cyclization of hydrazines with alkynes has been achieved to afford highly substituted pyrazoles under mild conditions. The cascade reaction involves two transformations: addition of the C–N bond of hydrazines to alkynes via ...
Xiao Feng Mao (1784368)   +4 more
core   +3 more sources

Combinatorial Libraries on Rigid Scaffolds: Solid Phase Synthesis of Variably Substituted Pyrazoles and Isoxazoles

open access: yesMolecules, 1997
The synthesis of combinatorial compound libraries has become a powerful lead finding tool in modern drug discovery. The ability to synthesize rapidly, in high yield, new chemical entities with low molecular weight on a solid support has a recognized ...
Eduard R. Felder, Andreas L. Marzinzik
doaj   +1 more source

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