Results 151 to 160 of about 51,140 (296)

Phosphoryl Radicals from Trivalent Iminyl Phosphines: A Photocatalytic Approach to N‐Phosphoryl Azetidines

Angewandte Chemie, EarlyView.
Photochemically generated phosphoryl radicals from iminyl phosphines enable strain‐release addition to azabicyclobutanes, providing access to elusive N‐phosphoryl azetidines. Combined experimental, computational, and EPR studies reveal an unconventional water‐assisted photoredox pathway.
Chandu G. Krishnan, Gabriel Cormier, Stefano A. Serapian, Marco Bortolus, Luca Dell'Amico   +4 more
wiley   +2 more sources

Color‐Pure Organic Luminophores: Characteristics, Definitions, Physical Basis and Fundamental Design Principles

Angewandte Chemie, EarlyView.
Color‐pure all‐organic emitters, i.e., with narrow spectral characteristics, are intensively studied for high‐definition organic LEDs and multi‐color bioimaging. In order to guide targeted materials design, this educative review discusses spectral characteristics, proper definitions and units, and the physical basis of spectral broadening, to distill ...
Johannes Gierschner, Sunwu Song, Siyang Feng, Liangxuan Wang, Miguel Ródenas, Begoña Milián‐Medina, Min Sang Kwon   +6 more
wiley   +2 more sources

Electrochromic properties of 'Trimeric' thiophene-pyrrole-thiophene

, 2008
A centrosymmetric polymer precursor, namely 6-(2,5-di(thiophen-2-yl)-1H-pyrrol-1-yl)hexan-1-amine (TPHA), was synthesized via a Knorr-Paal reaction using 1,4-di(2-thienyl)-1,4-butanedione and hexane-1,6-diamine. The resultant monomer was characterized by Nuclear Magnetic Resonance (H-1-NMR).
Tarkuc, S, Ak, M, Onurhan, E, Toppare, L
openaire   +1 more source

Ein Ruthenium‐(Ph‐BPE) Katalysator für die asymmetrische Alkinylierung von Fluoral: Enantioselektion aus einem von 12 fluxionalen Komplexen mit rutheniumzentrierter Stereogenität

Angewandte Chemie, EarlyView.
Dies beschreibt die ersten enantioselektiven Alkinylierungen wässrigen Fluorals. Diese Prozesse werden durch einen Iodid‐gebundenen Ruthenium‐(Ph‐BPE)‐Komplex katalysiert, welcher als oktaedrischer Metallkomplex in 12 verschiedenen stereoisomeren Formen vorliegen kann.
Weijia Shen, Sebastian Höthker, Colin E. Hayter, Nicholas K. Bowers, Andrea Pellegrini, Stefan Grimme, Michael J. Krische   +6 more
wiley   +1 more source

Synthesis, X-Ray Analysis, Anticancer Activity, Computational, and in Silico Studies of New Thiophene Pyrazole Conjugates. [PDF]

ChemistryOpen
Muhsinah AB, Kheder NA, Elhaty IA, Mabkhot YN.   +3 more
europepmc   +1 more source

Photo‐Triggered, Fast, and Fluorogenic Thiophene‐Based Cycloalkynes for the Bioorthogonal Fluorescent Labeling of 1,3‐Dipole‐Tagged Molecules in No‐Wash Conditions

Angewandte Chemie International Edition, EarlyView.
Thiophene is king! The fusion of thiophene rings to cycloalkynes super‐charged their copper‐free click chemistry applications, by (1) enhancing the alkyne reactivity (fastest cyclooctyne to date) and (2) rendering the alkyne fluorogenic (with fluorescence enhancement up to 150‐fold upon reaction), making these bioorthogonal reagents ideal for tracking ...
Jurgen Schulz, Zoeisha S. Chinoy, Tarek Khalaf, Yukang Li, Pengchen Ma, Dennis Svatunek, Kendall N. Houk, Frédéric Friscourt   +7 more
wiley   +1 more source

Design, synthesis, anticancer activity, and mechanistic investigation of 4,5,6,7-tetrahydrobenzo[<i>b</i>]thiophene carboxamides as CDK-2 inhibitors: <i>in vitro</i> and <i>in silico</i> DFT and molecular docking study. [PDF]

J Enzyme Inhib Med Chem
Anwer KE, Ramadan RM, Nossier ES, Altwaijry NA, Saleh A, Bräse S, Husseiny EM.   +6 more
europepmc   +1 more source

Single crystal X-ray-structurally characterized Mo(vi) complexes of thiophene-appended amide-imine conjugates for optical recognition of calcon and 2-aminobutyric acid. [PDF]

RSC Adv
Maji S, Mandal P, De AK, Chatterjee S, Das D.   +4 more
europepmc   +1 more source

Unlocking Catalyst Activation as a Critical Bottleneck in Cross‐Coupling Reactions: Room‐Temperature Couplings of Weak Nucleophiles Enabled by [Pd(1‐MeNAP)TFA]2 Precatalysts

Angewandte Chemie International Edition, EarlyView.
In many Pd‐catalyzed cross‐couplings, catalyst performance has been found to be limited by catalyst activation. Methylnaphthyl (MeNAP) palladium trifluoroacetate dimers are presented as easy‐to‐store and easy‐to‐handle precursors, which rapidly activate under reaction conditions, even when only weakly coordinating, non‐reducing nucleophiles are present.
Sourav Manna, Henric F. Janning, Nikolaos V. Tzouras, Jane Anto Simplica Sagayaraj, Fadil Faizal Mannighayil, Angelino Doppiu, Lukas J. Gooßen   +6 more
wiley   +1 more source

Benzo[1,2-<i>b</i>:3,4-b':5,6-<i>b</i>″]trithieno[3,2-<i>b</i>:6,5-<i>b</i>':9,8-<i>b</i>″]trithiophene: A Thiophene-Rich 3-Fold Symmetric Building Block for π-Extended Materials. [PDF]

Org Lett
Pal P, Bulgarevich K, Takimiya K.
europepmc   +1 more source