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Sulfonyl‐tethered N‐containing heterocycles are valuable building blocks in synthetic and pharmaceutical chemistry. Recently, the installation of fluoroalkanesulfonyl groups into heterocycles via the difunctionalization of alkenes still remains challenging. Herein in this work, an imino‐fluoroalkanesulfonylation of γ,δ‐unsaturated oxime esters has been achieved via photoredox/Cu dual catalysis. A variety of fluoroalkanesulfonyl‐tethered pyrroline derivatives have been readily synthesized in moderate to good yields under mild conditions. [ABSTRACT FROM AUTHOR]

A visible light‐induced transition metal‐free benzylic C(sp3)−C(sp2) defluorinative coupling between indole derivatives and polyfluoroarenes via the sequential electron transfer‐proton transfer (ET/PT) process has been developed, affording various polyfluorinated diarylmethanes. This protocol features mild conditions and good functional group tolerance. [ABSTRACT FROM AUTHOR]

We have developed a photoredox/Cu dual catalyzed enantioselective remote cyanation via 1,4-heteroaryl migration. Experimental and computational studies have been carried out to reveal the reaction mechanism and explain the origins of the regio- and enantioselectivities of the remote cyanation process. This methodology exhibits mild conditions, a broad substrate scope and good regio- and enantioselectivities, which provides a unique approach for catalyst-controlled asymmetric backbone recombination of molecules via functional group migration. [ABSTRACT FROM AUTHOR]

In this work, we have established a photoredox/Ti dual‐catalyzed dehydroxylation of cyclobutanone oximes. The resulting γ‐cyanoalkyl radicals undergo a cascade radical addition/cyclization with N‐acrylamides to afford cyanoalkyl substituted oxoindolines under mild conditions. This reaction also exhibits broad substrate scope and good functional group tolerance. Furthermore, it is applicable to late‐stage functionalization of complex molecules and gram‐scale synthesis, which illustrates its potential value in organic synthesis. [ABSTRACT FROM AUTHOR]

A domino cyclization of oxime esters and imines has been achieved by dual photoredox/copper catalysis. A variety of structurally diverse fully substituted dihydropyrimidines have been forged in 37–88% yields at room temperature. This synthetic protocol provides N‐heterocycles with high molecular complexity and functional group diversity. The present reaction is amenable to gram‐scale synthesis, which is expected to find potential applications in organic synthesis and drug discovery. A plausible reaction mechanism is proposed. [ABSTRACT FROM AUTHOR]

A photoredox/copper cocatalyzed domino cyclization of oxime esters with TMSCN has been developed. A range of structurally novel tetrasubstituted pyrazines have been obtained. This method features high bond-forming efficiency, high step economy, broad substrate scope, and gram-scale synthesis. Moreover, preliminary bioactivity evaluation of pyrazine products shows their promising antifungal activities. [ABSTRACT FROM AUTHOR]

A photoredox catalyzed trifluoromethyl radical‐triggered trifunctionalization of 5‐hexenenitriles via cyano group migration is reported. The cyano group migration is of high chemo‐selectivity even in the presence of aryl or heteroaryl groups as competitors. This protocol provides a facile access to a broad scope of CF3‐containing compounds with high molecular complexity and functional group diversity. The success of gram‐scale reaction and the versatility of products in derivative synthesis illustrate the potential value of this transformation in synthetic chemistry. [ABSTRACT FROM AUTHOR]

A novel transition‐metal‐free iminotrifluoromethylation of unsaturated oxime esters has been achieved through Rhodamine B photoredox catalysis under mild conditions. This methodology provides facile access to various CF3‐tethered pyrroline derivatives in high efficiency. The gram‐scale reaction demonstrates the potential value of this protocol in organic synthesis. [ABSTRACT FROM AUTHOR]

A visible‐light photoredox‐catalyzed tandem trifluoromethylation/cyclization/remote oxidation of 1,6‐dienes has been achieved. A broad range of trifluoromethyl group‐containing tetrahydrofurans or tetrahydropyrroles could be generated in good yields and with excellent diastereoselectivity by using dimethyl sulfoxide (DMSO) as the oxidant. The mild and facile protocol affords direct access to trifluoromethyl group‐bearing tetrahydrofurans and tetrahydropyrroles via difunctionalization of olefins. [ABSTRACT FROM AUTHOR]

A mild and highly efficient Cu‐catalyzed cascade cyclization/thiocyanation of unactivated alkenes bearing hydrazones has been developed. A broad range of SCN‐substituted pyrazolines have been readily obtained in good to excellent yields with commercially available and very cheap Cu(acac)2 and NH4SCN. This present method provides a rapid, facile, and practical access to valuable pyrazolines with the important SCN functionality, and it is amenable to the gram scale. [ABSTRACT FROM AUTHOR]

Organic light emitting diode (OLED) has been well researched and optimized during the past decades. OLED display is widely applied in the mobile phone, wearable bracelet, and TV et.al, and now it has begun to expand the field of automotive OLED displays. As another branch of OLED technology, the OLED lighting technology in automotive application market is also widely concerned. OLED inherently has the characteristics of planar light source, lightness, independently addressable segments, flexibility and transparency, which have brought impact and innovation to the traditional automotive lighting. Simultaneously, automotive lighting also puts forward more stringent requirements on the reliability and quality of the light sources. In this article, we will completely analyze the special requirements existed in different car lighting and discuss the advantages and disadvantages of OLED lighting, combined with current technologies. Also, OLED lighting technology in car application is highly anticipated in the future. [ABSTRACT FROM AUTHOR]

Diamination of olefins presents a powerful strategy to access vicinal diamines. During the last decade, metal-catalyzed diamination of olefins has received considerable attention. This study describes an efficient sequential diamination and dehydrogenation process of terminal olefins with CuBr as catalyst and di-tert-butyldiaziridinone as nitrogen source, providing a facile and viable approach to a variety of imidazolin-2-ones, which are important structural motifs present in various biologically active molecules. [ABSTRACT FROM AUTHOR]

Indolines are important moieties present in various biologically significant molecules and have attracted considerable attention in synthetic chemistry. This paper describes a Heck reaction/CH activation/amination sequence for forming indolines using di-tert-butyldiaziridinone. The reaction process likely proceeds via a pallada(II)cycle, which is converted into an indoline by oxidative addition to the diaziridinone and two subsequent CN bond formations. [ABSTRACT FROM AUTHOR]

Indolines are important moieties present in various biologically significant molecules and have attracted considerable attention in synthetic chemistry. This paper describes a Heck reaction/CH activation/amination sequence for forming indolines using di-tert-butyldiaziridinone. The reaction process likely proceeds via a pallada(II)cycle, which is converted into an indoline by oxidative addition to the diaziridinone and two subsequent CN bond formations. [ABSTRACT FROM AUTHOR]