Results 191 to 200 of about 17,074 (296)

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

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

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

3-Aryl-2<i>H</i>-azirines as annulation reagents in the Ni(II)-catalyzed synthesis of 1<i>H</i>-benzo[4,5]thieno[3,2-<i>b</i>]pyrroles. [PDF]

Beilstein J Org Chem
Pavlenko JI, Sakharov PA, Agafonova AV, Isadzhanyan DA, Khlebnikov AF, Novikov MS.   +5 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

A Telescoped Strategy for the Preparation of Five-Membered Hetero- and Carbocycles via Hydrogen Atom Transfer Photocatalysis in Flow. [PDF]

ChemSusChem
Sacchelli F, Quadri E, Raineri L, Jorea A, Pessina M, Lo Presti A, Della Ca' N, Ravelli D, Capaldo L.   +8 more
europepmc   +1 more source

Strengthened inter‐chain π–π contacts in amorphous diketopyrrolopyrrole polymers for robust flexible organic thin‐film transistors

FlexMat, EarlyView.
Vinylene‐linked DPP polymers with expanded thiophene donors achieve strengthened interchain π‐π stacking in near‐amorphous films, enabling high charge mobility and outstanding mechanical stability for flexible organic thin‐film transistors. Abstract Flexible organic thin‐film transistors (OTFTs) based on multi‐vinylene‐linked diketopyrrolopyrrole (DPP)
Yanlin Chen, Shihong Zhou, Tianwen Chen, Zitong Liu, Zhiwei Yang, Haijun Long, Xianfeng Liang, Xiao Xue, Chenyang Lu, Cailong Zhou, Lichun Dong, Luxi Tan   +11 more
wiley   +1 more source

Synthetic Strategies to Access Fluorinated Azoles. [PDF]

European J Org Chem
El-Gaber MKA, Djugovski M, Huang TY, Adhikari S, Roy S.   +4 more
europepmc   +1 more source

Programmable crack dynamics engineering enables flexible strain sensors with high linearity

FlexMat, EarlyView.
First‐decoupling theoretical framework of crack evolution elucidating the control methods, mechanistic insights, and structure‐activity relationships is established. Crack propagation from uncontrollable randomness systematically evolves into spatially ordered states.
Chunjin Wu, Shaolong Wang, Xu Wang, Heng Zhu, Yongliang Tian, Xinchen Jiang, Xin Rao, Yutong Han, Changrun Wang, Wen‐Yong Lai   +9 more
wiley   +1 more source

Recent Advancements in Photocatalytic Synthesis of Five Membered Nitrogen Heterocycles and Their Derivatives. [PDF]

Molecules
Haider Z, Archana R, Ju H.
europepmc   +1 more source