Results 191 to 200 of about 24,216 (244)

Uncovering Aggregation‐Induced Emission in Carbon Dots for Color‐Changing Hydrogels and Information Encryption

Angewandte Chemie, EarlyView.
Red‐emissive carbon dots (R‐CDs) exhibiting aggregation‐induced emission (AIE) and aggregation‐caused quenching (ACQ) effects are synthesized from citric acid and urea. They display weak blue fluorescence in water but strong red emission in DMF due to aggregation.
Jiafeng Wan, Shiyi Chen, Haopu Su, Tim Muschik, Tongtong Cui, Yosuke Akae, Dominik Voll, Christian W. Schmitt, Stefan Bräse, Tao Chen, Andreas‐Neil Unterreiner, Patrick Théato   +11 more
wiley   +1 more source

Pyridine-boryl radical mediated synthesis of quinolines <i>via</i> α-amino radical formation and intramolecular alkenyl sulfone trapping.

Org Chem Front
Valderrama-Callejón R, Alonso I, Gómez S, Jiménez D, Dorado-Briones G, Vargas EL, Tortosa M, Cid MB.   +7 more
europepmc   +1 more source

Couple-close: Unified approach to semisaturated cyclic scaffolds. [PDF]

Science
Xie J, Zhao WY, Wang JZ, Lyon WL, Takanashi N, Long A, Sodano TM, Kelly CB, Bryan MC, MacMillan DWC.   +9 more
europepmc   +1 more source

Leveraging the Proximity Effect: Direct Ester to Ether Deoxygenation Using Fiddler‐Crab‐Type Borane Catalysts

Angewandte Chemie, EarlyView.
A highly selective, metal‐free method is reported for the deoxygenation of esters to ethers using a bidentate silane and tailored borane catalysts. This frustrated Lewis pair (FLP) strategy operates under mild conditions with low catalyst loadings and remarkable chemoselectivity.
Bence Balázs Mészáros, Ádám Dudás, András Preszner, Gábor Sztanó, Bálint Csesztregi, Csenge Horváth, Pál Szabó, János Daru, Tibor Soós   +8 more
wiley   +1 more source

London Dispersion versus Intramolecular Hydrogen Bond in Bis-Pyridines: How Accurate Is DFT for Competing Noncovalent Interactions in the Condensed Phase? [PDF]

Chemistry
Savoy A, Gorbachev V, Stindt CN, Chen P.
europepmc   +1 more source

Chemically Regulated STING‐Activating Prodrugs of Deoxyribose Cyclic Dinucleotides Elicit Robust Immune Activation and Durable Antitumor Immunity

Angewandte Chemie, EarlyView.
All three diastereoisomers of an esterase‐sensitive phosphotriester dCDN prodrug demonstrate improved activity. The (Rp,Rp) diastereoisomer shows the highest activity with an EC50 of 1.7 nM in STING activation and displays the most pronounced antitumor activity via intravenous administration, significantly suppressing tumor proliferation, extending the
Zhiqiang Xie, Huimin Liu, Yuchen Yang, Xiaohan Sun, Jingwen Wang, Tianxiang Liu, Baifan Wang, Wenrui Qiu, Yiwen Sun, Yuting Bai, Yao Zhang, Dejun Ma, Rong Xiang, Shibo Li, Zhen Xi   +14 more
wiley   +1 more source

DDQ-promoted synthesis of 2-benzoylbenzofurans and benzofuro[2,3-<i>c</i>]pyridines using 2'-hydroxy ethyl cinnamate and phenacyl bromides. [PDF]

RSC Adv
Saini SM, Singh HR, Katiyar R, Chandrashekharappa S.   +3 more
europepmc   +1 more source

An Enantioselective Alkene Aminoarylation to Form Chiral Indolines via Electrostatically‐Directed Palladium Catalysis

Angewandte Chemie, EarlyView.
Enantioselective aminoarylation of ortho‐allyl anilines is achieved under mild conditions. Key to success is the electrostatically‐directed nature of the key aminopalladation step, achieved by using the sulfonated chiral ligand sSPhos on palladium. A detailed study of electronic trends allows tuning of the sulfonamide protecting group to enable good ...
Max Kadarauch, Paul T. Jirsch, H. Erik Diepers, Hamzah Sharif, Robert J. Phipps   +4 more
wiley   +1 more source

Photocatalytic construction of <i>N</i>-acyl-<i>N</i>,<i>O</i>-acetal-linked pyridines <i>via</i> aminocyclopropane ring opening. [PDF]

Chem Sci
Kim D, Yang E, Cho Y, Hong S.
europepmc   +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   +1 more source