Results 231 to 240 of about 744,099 (279)

Adaptive Hydrogenation of Alkynes Using CO as a Molecular Trigger to Selectively Produce Alkanes or Z‐Alkenes

Angewandte Chemie, EarlyView.
One catalyst for two products: CO acts as a molecular trigger for adaptive alkyne hydrogenation using supported Pd nanoparticles. The catalyst reversibly switches between the formation of alkanes under H2 and Z‐alkenes under H2/CO for 37 structurally diverse alkynes.
Manisha Durai, Lachlan Sharp‐Bucknall, Tim Alexander Schubert, Jacob Johny, John‐Tommes Krzeslack, Walid Hetaba, Walter Leitner, Alexis Bordet   +7 more
wiley   +1 more source

Modular Access to α‐Tertiary Amines: Electrochemical Tandem Di‐Functionalization of Olefins With Ammonia Surrogates and Amino Acids

Angewandte Chemie, EarlyView.
A metal‐ and oxidant‐free electrochemical multicomponent di‐functionalization strategy that rapidly converts 1,1‐disubstituted alkenes into α‐tertiary primary amines with simultaneous installation of bio‐relevant sulfur or selenium motifs was devised for late‐stage functionalization. ABSTRACT Quaternary carbon centers, especially those bearing nitrogen,
Adrija Ghosh, Tarun, Sven Erik Peters, Lutz Ackermann, Debasis Banerjee   +4 more
wiley   +1 more source

Ortho-Substituent Effects on Halogen Bond Geometry for N-Haloimide⋯2-Substituted Pyridine Complexes. [PDF]

Adv Sci (Weinh)
Yu S, Rautiainen JM, Kumar P, Gentiluomo L, Ward JS, Rissanen K, Puttreddy R.   +6 more
europepmc   +1 more source

Fluorene‐Framework Engineering Enables Narrowband Red Multi‐Resonance Emitters for High‐Efficiency With Negligible Roll‐Off Toward BT.2020

Angewandte Chemie, EarlyView.
σ‐Decoupled C9 fluorene‐framework topology control enables narrowband red MR emitters. SF‐BNO and PF‐BNO share the same BNO core, but differ in closed/open fluorene ring closure. SF‐BNO improves steric shielding and stability, while PF‐BNO enhances PLQY, orientation, and efficiency. Ex‐PSF and TE‐OLED architectures deliver ultra‐low efficiency roll‐off
Aradhya Rajput, Nisha Vergineya S, Subramanian Muruganantham, Meghana Tirupati, Odugu Pavan Kumar, Jun‐Yun Kim, Mi Young Chae, Jang Hyuk Kwon   +7 more
wiley   +1 more source

Crystal structure and Hirshfeld surface analysis of a halogen bond between 2-(allyl-thio)-pyridine and 1,2,4,5-tetra-fluoro-3,6-di-iodo-benzene. [PDF]

Acta Crystallogr E Crystallogr Commun
Risken R, Schrimpf T, Klotz FD, Strohmann C.   +3 more
europepmc   +1 more source

Unified Synthesis of Unconventional α‐Polyhalogenated Amines Through Hydroaminoalkylation

Angewandte Chemie International Edition, EarlyView.
A unified, redox‐neutral method that transforms alkenes and alkynes into α‐polyhalomethyl amines using stable hemiaminal reagents is reported. This approach enables access to CF3, CF2H, CF2Cl, and CFClH motifs, expanding halogenated amine space with broad substrate scope, functional group tolerance, and applicability to late‐stage modification of drug ...
Angela K. Hofmeister, Giulia Iannelli, Péter Angyal, Augustin Malandain, Daniel Kaiser, Boris Maryasin, Hanspeter Kählig, Matteo Barel, Gaia Novarino, Nuno Maulide   +9 more
wiley   +1 more source

Halogen Bond-Assisted Supramolecular Dimerization of Pyridinium-Fused 1,2,4-Selenadiazoles via Four-Center Se₂N₂ Chalcogen Bonding. [PDF]

Int J Mol Sci
Dukhnovsky EA, Novikov AS, Kubasov AS, Borisov AV, Sikaona ND, Kirichuk AA, Khrustalev VN, Kritchenkov AS, Tskhovrebov AG.   +8 more
europepmc   +1 more source

Separation and Valorization of Chlorine From Tail Gas Streams

Angewandte Chemie International Edition, EarlyView.
A commercially available ion exchange resin was found to adsorb chlorine gas selectively in the presence of other gases reversibly forming the corresponding trichloride species [IEx][Cl3]. This discovery was telescoped to an efficient process for the recycling and valorization of chlorine from industrially abundant tail gas streams to base chemicals ...
Gesa H. Dreyhsig, Merlin Kleoff, Patrick Voßnacker, Elisabeth Dorn, Jacob H. Richter, Sebastian Riedel   +5 more
wiley   +1 more source

Key-to-lock halogen bond-based tetragonal pyramidal association of iodonium cations with the lacune rims of beta-octamolybdate. [PDF]

Chem Sci
Soldatova NS, Radzhabov AD, Ivanov DM, Burguera S, Frontera A, Abramov PA, Postnikov PS, Kukushkin VY.   +7 more
europepmc   +1 more source

Low‐Pressure CO2 and Aromatic Recognition by Interlayer Adaptive Crystal of π‐Hole‐Functionalized Zn(II) Coordination Sheets

Angewandte Chemie International Edition, EarlyView.
A perfluorinated Zn(II) coordination sheet operates as an interlayer adaptive crystal (LAC), where a small ultramicropore acts as an electrostatic trigger. Guest‐induced breathing driven by fluorinated π‐hole surfaces enables highly selective inclusion of CO2 over N2 and CH4, and benzene over other six‐membered hydrocarbons, beyond the intrinsic ...
Masahiro Abe, Tomoki Jitsukata, Shinpei Kusaka, Ryotaro Matsuda, Mikihiro Nomura, Akiko Hori   +5 more
wiley   +1 more source