Results 91 to 100 of about 24,479 (307)

Strategy for Contiguous Tetramination of Cyclohexanones with o‑Phenylenediamines with Elemental Sulfur and DMSO

, 2019
The S8/DMSO combination was found to be an excellent oxidizing agent for ipso,α,β,γ-tetramination of cyclohexanones with two molecules of o-phenylenediamines in the presence of TFA as a catalyst.
Le Anh Nguyen (7139885), Thanh Binh Nguyen (1508308), Pascal Retailleau (1445848)   +2 more
core   +1 more source

Heterogeneous Single/Dual‐Atom Electrocatalysts in Lithium–Sulfur Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review summarizes recent advances in single‐atom and dual‐atom electrocatalysts for high‐performance lithium–sulfur batteries. The text systematically covers the classification of catalysts by active metal centers, key synthesis methods, in situ characterization for mechanistic insights, and electrocatalytic mechanisms.
Wenbin Li, Ying Xin, Zhaoliang Zhang, Jin Wang   +3 more
wiley   +1 more source

Three Birds with One Stone: High‐Performance 2D Lead‐Free Perovskite Solar Cells via Direct In Situ Generation of Organic‐Spacer Precursors

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Adopting a “three birds with one stone” strategy, the in situ generation of organic spacer simultaneously addresses three major challenges limiting 2D tin‐based perovskites: (1) Sn2+ oxidation; (2) rapid crystallization; and (3) uncontrolled 2D phase distribution.
Yifan Shen, Yanfeng Chen, Quan Chen, Jinyu Wu, Jian Yang, Erdong Zhang, Wei Wang, Ningyi Xu, Wei Shen, Junmin Xia, Shufen Chen, Wei Huang   +11 more
wiley   +1 more source

Synthesis of N,3,5-Substituted 1,4-Phenylenediamines

, 2012
Восстановлением N,3,5-замещенных 4-нитрозоанилинов гидразингидратом на Pd/C получены N-3,5-замещенные 1,4-фенилендиамины. Синтез N-((1-адамантил)метил)-3,5-замещенных 4-нитрозоанилинов впервые осуществлен конденсацией 2-гидроксимино-1,3-дикетонов с ...
Роот, Е.В., Root, Evgeniy V., Gavrilova, Natalya A., Семиченко, Е.С., Kositsyna, Anna S., Suboch, George A., Субоч, Г.А., Косицына, А.С., Гаврилова, Н.А., Semichenko, Elena S.   +9 more
core   +1 more source

Solvent-controlled stereodivergent synthesis of E- and Z-enamines via metal-free formal C(sp2)-H amination of α-substituted styrenes

Green Synthesis and Catalysis
C(sp2)-H amination represents an attractive approach for the synthesis of enamines, which is intrinsically associated with the challenge of controlling of stereochemistry and primarily relying on transition-metal catalysis.
Dangui Wang, Jinbei Yao, Wentao Zhang, Shuyue Zhang, Huaibin Yu, Laihu Peng, Weijun Yao, Zhifeng Dai, Guojiao Wu, Fangrui Zhong   +9 more
doaj   +1 more source

Programmable luminescent platform based on carbon quantum dots enables wavelength‐multiplexed optical data storage and encryption

FlexMat, EarlyView.
A carbon‐quantum‐dots (CQDs)‐based programmable luminescent platform is proposed for multidimensional optical information encryption and high‐capacity data storage by leveraging wavelength‐division multiplexing. Furthermore, a prototype tri‐layer optical disk is demonstrated, where data written via laser ablation on different CQD layers are retrieved ...
Honglei Sun, Qingfeng Gui, Yunsong Di, Zihan Ying, Siqi Liu, Mengqi Li, Meng Zhang, Lun Yang, Yushen Liu, Zhixing Gan   +9 more
wiley   +1 more source

Synthesis of N,3,5-Substituted 1,4-Phenylenediamines

, 2020
Восстановлением N,3,5-замещенных 4-нитрозоанилинов гидразингидратом на Pd/C получены N-3,5-замещенные 1,4-фенилендиамины. Синтез N-((1-адамантил)метил)-3,5-замещенных 4-нитрозоанилинов впервые осуществлен конденсацией 2-гидроксимино-1,3-дикетонов с ...
Роот, Е.В., Root, Evgeniy V., Gavrilova, Natalya A., Семиченко, Е.С., Kositsyna, Anna S., Suboch, George A., Субоч, Г.А., Косицына, А.С., Гаврилова, Н.А., Semichenko, Elena S.   +9 more
core  

Illuminating point‐of‐care diagnostics with aggregation‐induced emission biosensors

FlexMat, EarlyView.
This review highlights the application of aggregation‐induced emission luminogens (AIEgens) in point‐of‐care (POC) diagnostics for disease biomarker detection. It systematically examines a range of biosensing platforms, including lateral flow immunoassays, microfluidic chips, and electrochemiluminescence sensors, alongside their utility in detecting ...
Danni Hu, Yubing Hu, Dong Wang, Ben Zhong Tang   +3 more
wiley   +1 more source

Computational study on the encapsulation of o-phenylenediamine, m-phenylenediamine and p-phenylenediamine into the host cucurbit[7]uril

, 2017
Department of Chemistry, Manonmaniam Sundaranar University, Tirunelveli-627 012, Tamilnadu, India E-mail : antonyphdchem@yahoo.com Manuscript received online 02 April 2014, accepted 15 October 2016 The structural investigation of o-phenylenediamine (oPA), m-phenylenediamine (mPA), and p-phenylenediamine (pPA) encapsulated with the host cucurbit[7]uril (
openaire   +1 more source

Short‐Term 6PPD‐Q Exposure alters Tight‐Junction‐Related Gene Expression Without Acute Lethality in Japanese Medaka Oryzias latipes

Journal of Applied Toxicology, EarlyView.
ABSTRACT 6PPD‐quinone (6PPD‐Q), a transformation product of the tire antioxidant 6PPD, causes acute mortality in several salmonid species, but its toxicity varies markedly among fish species. Disruption of vascular‐barrier integrity and inflammatory signaling has been proposed as a key mechanism of 6PPD‐Q toxicity.
Kyoshiro Hiki
wiley   +1 more source