Results 141 to 150 of about 101,033 (289)

From A Fundamental Study on Hydrogen Bond Network and Chain Mobility in Benzimidazole Model Compounds to Various Designs and Development of Benzimidazole-based Anhydrous Membranes for Proton Exchange Membrane Fuel Cell

Journal of Analytical Science and Technology, 2011
A series of N-containing heterocycles i.e., imidazole and benzimidazole are systematically designed to study how proton transfer in anhydrous system is related to hydrogen bond network and molecular mobility.
Suwabun Chirachanchai, Chatchai Jarumaneeroj, Autchara Pangon   +2 more
doaj  

Geminale Difunktionalisierung von Ketonen durch C–S Bindungs‐insertion photogenerierter Donor–Donor Diazoverbindungen

Angewandte Chemie, EarlyView.
Die geminale Difunktionalisierung leicht verfügbarer Bausteine ermöglicht einen schnellen Zugang zu molekularer Komplexität. Diese Arbeit stellt eine Strategie vor, um zwei unterschiedliche funktionelle Gruppen an einem Carbonylkohlenstoff zu installieren, indem dieser in eine Donor–Donor‐Diazo‐Verbindung überführt wird. Die Methode ist sowohl im Batch‐
Vincent George, Aryaman Pattanaik, Daniel Maddox, Lukas M. Sigmund, Giovanna Mejia, Sara Pahlén, Simon O. Angerer, Maria Schmoll, Lisa Marie Schneider, Nidhal Selmi, Mikhail Kabeshov, Giulia Bergonzini, Julia Rehbein, Burkhard König   +13 more
wiley   +1 more source

Intermolecular Electrophilic Germylation Using GeCl4 and Al2Cl6

Angewandte Chemie, EarlyView.
While electrophilic aromatic substitution is well‐established for carbon and silicon‐based electrophiles, it is extremely underdeveloped for germanium. Herein we report the first effective intermolecular Germa–Friedel–Crafts reaction. The process can be modified to enable selective synthesis of the mono‐ or the di‐aryl germane derivatives, ArGeCl3 and ...
Justyna Łosiewicz, Milan Kumar Bisai, Zachary A. Bub, Stuart A. Macgregor, Michael J. Ingleson   +4 more
wiley   +2 more sources

In‐situ‐Konstruktion von Imidazopyridinium‐Fluoreszenzlabels für Biokonjugationen

Angewandte Chemie, EarlyView.
Durch Chromophor‐Engineering von Isochinolinaldehyden entstehen TICT‐basierte fluorogene Farbstoffe für die In Situ Markierung unterschiedlicher (Bio‐)Moleküle mit großen Stokes‐Verschiebungen, die mit der Zellbildgebung kompatibel sind. ZUSAMMENFASSUNG Einfache, effiziente Transformationen fluorogenen Charakters, die unter biokompatiblen Bedingungen ...
Dongchen Du, László Albert, Milan Weitzel, Linda E. Eijsink, Elena R. Cotroneo, Dennis Marzin, Felipe Opazo, Nadja A. Simeth   +7 more
wiley   +1 more source

Homoleptic and Heteroleptic Borylones L1‐B(Ph)‐L2

Angewandte Chemie, EarlyView.
Density functional theory and CCSD(T) calculations reveal that homoleptic and heteroleptic borylones L1–B(Ph)–L2 are thermodynamically accessible. Remarkably, the homoleptic borylones B(Ph)(N2)2 and B(Ph)(SPh2)2 exhibit higher bond dissociation energies than the related carbones.
Qin Ma, Wei Li, Ya Hu, Lili Zhao, Gernot Frenking   +4 more
wiley   +2 more sources

Asymmetric α-amidoalkylation. Synthesis of α-substituted piperidines of high enantiomeric purity [PDF]

, 1987
Kärtner, Annerose, Wanner, Klaus Th.
core   +1 more source

Recent Advances in the Synthesis of 2-Substituted Oxetanes [PDF]

, 2015
Bull, JA, Davis, O
core   +1 more source

Chiral N-acyliminium ions as new tools in the asymmetric synthesis of CNS-active compounds [PDF]

, 1994
Beutler, Comins, Gray, Hellmann, Irie, K.Th. Wanner, Kiguchi, Wanner, Wanner, Wong   +9 more
core   +1 more source

Distribution of extraterrestrial nucleobases, other N-heterocycles, and their precursors in a sample from asteroid Bennu. [PDF]

Commun Chem
Oba Y, Koga T, Takano Y, Naraoka H, Hirakawa Y, Sunami S, Furukawa Y, Yamazaki T, Tomaru T, Dworkin JP, Glavin DP, Connolly HC, Lauretta DS.   +12 more
europepmc   +1 more source

Correction: Continuous flow synthesis of high valuable N-heterocycles via catalytic conversion of levulinic acid. [PDF]

Front Chem
Frontiers Editorial Office.
europepmc   +1 more source