Results 171 to 180 of about 42,147 (261)

Photochemical N-dealkylation of Tertiary Amines Coupled With Photocharging of Poly(Heptazine Imides). [PDF]

Angew Chem Int Ed Engl
Zhuang J, Zhang Q, Wang C, Yao T, Cheng CL, Dral PO, Savateev O.   +6 more
europepmc   +1 more source

Possible favored great oxidation event scenario on exoplanets around M-stars with the example of TRAPPIST-1e. [PDF]

Sci Rep
Jaziri AY, Carrasco N, Charnay B.
europepmc   +1 more source

Scalable Access to N‑Acylindole Linkages: Enabling the Synthesis of Antitrypanosomal Noncanonical Cyclic Peptides for Chagas Disease

Angewandte Chemie, EarlyView.
A gram‐scale supply of bulbiferamide A, which features a rare N‐acylindole linkage and possesses potent inhibitory activity against Trypanosoma cruzi epimastigotes (IC50 = 4.1 µM)—the causative parasite of Chagas disease—was successfully achieved. Moreover, the cyclization strategy developed in this study facilitated the synthesis of noncanonical ...
Jie Zhang, Hugh Nakamura
wiley   +1 more source

Direct Photochemical Patterning of Lithium Niobate Structures for Scalable Nonlinear Optical Metasurfaces. [PDF]

Small Sci
Ali RF, Aguilar G.
europepmc   +1 more source

Depolymerization and Reuse of Polycarbonates: Emerging Classes, Mechanisms and Challenges

Angewandte Chemie, EarlyView.
This review collects the latest developments in the area of chemical and catalytic polycarbonate recycling strategies and includes the controlled degradation of similar types of macromolecules. Apart from the main strategies for deconstruction, the key mechanistic features of these depolymerization processes are also discussed together with the ...
Davide Rigo, David H. Lamparelli, Antonio Buonerba, Carmine Capacchione, Arjan W. Kleij   +4 more
wiley   +1 more source

α,β-Unsaturated (Bis)Enones as Valuable Precursors in Innovative Methodologies for the Preparation of Cyclic Molecules by Intramolecular Single-Electron Transfer. [PDF]

Molecules
Benettin T, Franco F, Medici F, Rossi S, Puglisi A.   +4 more
europepmc   +1 more source

Hydrogen Atom Transfer Induces Photodegradation in Carbonyl‐Based Multi‐Resonance TADF Emitters

Angewandte Chemie, EarlyView.
Boosting triplet harvesting in N/C═O MR‐TADF emitters unexpectedly induces rapid photodegradation under oxygen‐free conditions. Spectroscopic studies reveal that triplet excited states trigger hydrogen‐atom transfer from solvent to the carbonyl unit, driven by triplet energetics and hydrogen electrophilicity.
Changfeng Si, Elvie F. P. Beaumont, Jenn Zi Yu Tan, Mitchell J. Demchuk, Zachary M. Hudson   +4 more
wiley   +1 more source

OVOCs drive radical cycling and ozone formation in background air. [PDF]

Environ Sci Ecotechnol
Xiong E, Guo H, Fu TM, Lyu X, Wang Y, Zhou B, Xia M, Zou Z, Yuan Q, Yang J, Shek KY, Chen J, Jiang T, Tao W, Zhang A, Xiang W, Lee S, Wang T.   +17 more
europepmc   +1 more source

Photocatalytic Cross‐Coupling of Phenols and Heteroaryl Halides With Machine Learning‐Guided Reaction Prediction

Angewandte Chemie, EarlyView.
Photocatalytic cross‐coupling: A redox‐neutral photochemical method enables direct C(sp2)─C(sp2) bond formation between phenols and heteroaryl halides using an organic dye and base. Complementary radical generation allows efficient cross‐coupling in up to 91% yield. Mechanistic studies, DFT, HTE, and machine learning rationalize and predict reactivity,
Matthew C. Carson, Alice Wu, Kalyana B. Duggal, Madeline E. Rotella, Marisa C. Kozlowski   +4 more
wiley   +1 more source

Photochemical reduction of aryl chlorides, bromides, and iodides <i>via</i> ternary EDA complexes with guanidine bases. [PDF]

Chem Sci
Hannan RJ, Vondran AM, Cho S, Hanson KM, Tonnelé C, Casanova D, Bardeen CJ, Bahamonde A.   +7 more
europepmc   +1 more source