Results 181 to 190 of about 51,454 (296)

Remarkable Formation of Indene Derivatives Upon Friedel–Crafts Acylation Reactions

European Journal of Organic Chemistry, EarlyView.
This shows indene derivatives. Under the reaction conditions of a Friedel–Crafts acylation, alkyl benzenes underwent an unprecedented cyclopentannulation furnishing indene derivatives. Alkylbenzene derivatives react with two equivalents of pivaloyl chloride (PivCl) in the presence of aluminum trichloride under formation of indene derivatives with up to
Leah Bantel, Neels Kruse, Marc Schmidtmann, Jens Christoffers   +3 more
wiley   +1 more source

Unraveling UVA1-Induced Photomodifications of Eumelanin and Pheomelanin in Human Skin: Insights into Pigment Darkening. [PDF]

Int J Mol Sci
Ito S, Sok J, Nakanishi Y, Wakamatsu K, Del Bino S.   +4 more
europepmc   +1 more source

Activation of Aryl Halides by Triplet–Triplet Annihilation Upconversion Enabling Coupling Processes Under an Open‐to‐Air Environment

European Journal of Organic Chemistry, EarlyView.
Triplet–triplet annihilation upconversion (TTA‐UC) performed inside supramolecular viscoelastic gels enables efficient CC and C–heteroatom coupling reactions under green LED irradiation in open‐air conditions. The gel network restricts oxygen diffusion, preserves triplet states, and allows aryl halide activation through upconverted excited states ...
Daniel Álvarez‐Gutiérrez, Paola Domínguez Domínguez, M. Consuelo Jiménez, David Díaz Díaz, Raúl Pérez‐Ruiz   +4 more
wiley   +1 more source

Structural modification of functionalized carbazoles: from Z' = 1 to Z' = 6. [PDF]

Acta Crystallogr B Struct Sci Cryst Eng Mater
Abualnaja M, Probert MR, Hall MJ, Brock CP, Waddell PG.   +4 more
europepmc   +1 more source

Mesityl‐Substituted Azuleno[1′,2′:4,5]pyrrolo[2,3‐b]quinoxalines: Synthesis, Functionalization, Photophysical, and Electrochemical Properties

European Journal of Organic Chemistry, EarlyView.
Azuleno[1′,2′:4,5]pyrrolo[2,3‐b]quinoxaline with a mesityl group as a solubilizing group was synthesized. By synthesizing derivatives in which various functional groups were introduced into two electronically distinct sites, the pyrrole nitrogen atom and the azulene five‐membered ring, we were able to reveal that the photophysical and electrochemical ...
Ryuta Sekiguchi, Hiroki Mizuno, Ikumi Uchiyama, Souta Yuruka, Atsuya Shimizu, Taku Shoji, Shunji Ito   +6 more
wiley   +1 more source

Label-Free Impedimetric Biosensor Based on Molecularly Imprinted PPy/MWCNTs Nanocomposites for Sensitive and Selective Detection of <i>Escherichia coli</i>. [PDF]

Biosensors (Basel)
Zhang W, Wang N, Qi T, Sun H, Liang L, Zhao J.   +5 more
europepmc   +1 more source

Electrochemical Three‐Component Synthesis of Heteroaryl Sulfonates

European Journal of Organic Chemistry, EarlyView.
An electrochemical, metal‐free three‐component strategy for direct C(sp2)─H sulfonation of electron‐rich heteroarenes using SO2 and alcohols is described. Utilizing inexpensive graphite electrodes and practical SO2 stock solutions under mild conditions, this method provides straightforward access to heteroaryl sulfonates from simple building blocks ...
Po‐Chung Chien, Harald Kelm, Georg Manolikakes   +2 more
wiley   +1 more source

Pyrrole without Life: Reaction of Aminomethylene with the Propargyl Radical. [PDF]

J Phys Chem Lett
McClish R, Schleier D, Kamer J, Kasper T, Hemberger P, Bodi A, Bouwman J.   +6 more
europepmc   +1 more source

Strategic construction of fluorinated surroundings in NIR‐II‐emissive organic semiconducting agents for amplifying cancer phototheranostics

FlexMat, EarlyView.
The development of conventional phototheranostic nanomedicines suffers from an intrinsic trade‐off between NIR‐II fluorescence emission and phototherapeutic effects, leading to poor overall efficacy. Herein, we propose an innovative fluorination strategy by constructing fluorinated surroundings in NIR‐II‐emissive organic semiconducting agents to ...
Xiaoming Hu, Achen Qin, Caijun Zhu, Jinshuo Mi, Zejing Chen, Jiaying Shao, Zhen Li, Zhen Yang   +7 more
wiley   +1 more source

Regioselective Synthesis of 1,2,3-Trisubstituted Pyrroles via Addition-Cyclization of Crotonate-Derived Sulfonium Salts with a Carboxylic Acid and an Amine. [PDF]

J Org Chem
Chavan LN, Pashikanti G, Goodman MM, Liebeskind LS.   +3 more
europepmc   +1 more source