Results 51 to 60 of about 4,774 (187)

Fluorescent Diarylethenes With Polar Groups: Synthesis, Spectra, and Optical Microscopy Applications

open access: yesChemistry – A European Journal, EarlyView.
Blinking green and flashing red: photo‐switchable and photo‐activatable probes emitting green and red light were prepared and applied as bioconjugates in super‐resolution optical microscopy. ABSTRACT The use of photoactivatable fluorescent diarylethenes (fDAEs) in biology‐related light microscopy has been restricted by the lack of probes having freely ...
Kakishi Uno   +6 more
wiley   +1 more source

Diastereoselective Copper‐Catalyzed Defluorosilylation of Pentafluoroethyl Alkenes to Access Polyfluorinated Allylsilanes

open access: yesChinese Journal of Chemistry, EarlyView.
Under copper(I) catalysis, pentafluoroethylated alkenes can undergo smooth defluorosilylation to generate novel polyfluorinated products. The reaction exhibits high levels of diastereoselectivities for obtaining multisubstituted allylsilanes with control of the double bond geometry.
Yuwei Zong, Yihan Tang, Gavin Chit Tsui
wiley   +1 more source

Crystal structure of ethyl 5′′-fluoro-2′′,3-dioxo-6′,7′,8′,8a'-tetrahydro-2′H,3H,5′H-dispiro[benzo[b]thiophene-2,1′-indolizine-3′,3′′-indoline]-2′-carboxylate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, C25H23FN2O4S, the fused piperidine ring of the octahydroindolizine ring system adopts a chair conformation and the five-membered ring has a twisted conformation on the N—C(spiro) bond.
R. Raja   +4 more
doaj   +1 more source

Gas–Solid Interface‐Assisted Growth of Organic Semiconductor Single Crystals: Dimensions, Structures, Mechanisms, and Applications

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Gas–solid interface‐assisted growth strategies have unlocked precise control over crystal structure, morphology, dimension, and molecular packing. The obtained organic semiconductor single crystals represent the ideal candidates for high‐performance organic optoelectronic devices.
Tingyi Yan   +8 more
wiley   +1 more source

Synthesis and structure elucidation of some novel thiophene and benzothiophene derivatives as cytotoxic agents

open access: yesActa Pharmaceutica, 2016
Attempting to produce cyclized systems with potential anti-proliferative activity, a series of novel thiophene and benzothiophene derivatives were designed and synthesized.
Mohareb Rafat M.   +3 more
doaj   +1 more source

Electrochemical Three‐Component Synthesis of Heteroaryl Sulfonates

open access: yesEuropean 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   +2 more
wiley   +1 more source

The role of additives in the film formation kinetics of active layers in organic solar cells: From in situ characterization to mechanistic elucidation

open access: yesFlexMat, EarlyView.
This review highlights the critical regulatory role of liquid and solid additives in the film formation kinetics of organic solar cells (OSCs) active layer. Real‐time in situ characterization technology techniques (in situ UV‐Vis, PL, GIWAXS, and GISAXS) are utilized to monitor the dynamic solution‐to‐solid transformation, revealing how additives ...
Yuanwei Zhao   +8 more
wiley   +1 more source

Organic photonic synaptic transistors for bionic vision: From spectral engineering to flexible intelligent perception

open access: yesFlexMat, EarlyView.
Different wavelength photonic synapses are used for biomimetic visual applications. Abstract Bionic intelligent visual perception systems have significant application prospects in fields such as autonomous driving and robotics, medical imaging and auxiliary diagnosis, security and monitoring.
Longlong Jiang   +6 more
wiley   +1 more source

SYNTHESIS OF BENZO[B]THIOPHENE-BASED ORGANIC COMPOUNDS AND THEIR HYDRAZINE ELECTROOXIDATION PERFORMANCE AS AN ANODE CATALYST

open access: yesEskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi
In this study, 3-iodo-2-(p-tolyl)benzo[b]thiophene (4C) is synthesized by using Sonagashira coupling reactions and electrophilic cyclization reactions.
Arif Kıvrak   +4 more
doaj   +1 more source

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