In the last few years, visible-light initiated organic transformations have attracted increasing attention. The development of visible-light-promoted photocatalytic reactions, which enable rapid and efficient synthesis fine chemicals, is highly desirable from viewpoint cost, safety, availability, environmental friendliness. this Minireview, recent advances made in fast developing area research are discussed.

Visible-light-induced radical decarboxylative functionalization of carboxylic acids and their derivatives has recently received considerable attention as a novel efficient method to create CC CX bonds. Generally, this visible-light-promoted decarboxylation process can smoothly occur under mild reaction conditions with broad range substrates an excellent functional-group tolerance. The species formed from the step participate in not only single photocatalytic transformations, but also...

ConspectusVisible-light photocatalysis has recently received increasing attention from chemists because of its wide application in organic synthesis and significance for sustainable chemistry. This catalytic strategy enables the generation various reactive species, frequently without stoichiometric activation reagents under mild reaction conditions. Manipulation these intermediates can result numerous synthetically useful bond formations a controllable manner.In this Account, we describe our...

Abstract Organische Umsetzungen, die durch sichtbares Licht ausgelöst werden, finden seit einigen Jahren immer größere Aufmerksamkeit. Insbesondere im Hinblick auf Kosten, Sicherheit, Verfügbarkeit und Umweltfreundlichkeit ist Entwicklung solcher photokatalytischer Reaktionen zur effizienten Herstellung von Feinchemikalien höchst wünschenswert. In diesem Kurzaufsatz werden jüngsten Fortschritte sich schnell entwickelnden Forschungsgebiet erörtert.

To shed light on: The title reaction allows the generation of a variety functionalized phenols and analogues using [Ru(bpy)3Cl2]⋅6 H2O as photocatalyst under very mild conditions. This not only incorporates an oxygen atom from molecular directly into product, but also expands application visible-light photocatalysis. bpy=bipyridine. Detailed facts importance to specialist readers are published "Supporting Information". Such documents peer-reviewed, copy-edited or typeset. They made available...

ConspectusNitrogen-centered radicals (NCRs) are a versatile class of highly reactive species that have longer history than the classical carbon-based in synthetic chemistry. Depending on N-hybridization and substitution patterns, NCRs can serve as electrophiles or nucleophiles to undergo various radical transformations. Despite their power, progress nitrogen-radical chemistry is still slow compared with popularity carbon radicals, considerable potential has been largely underexplored, which...

Splitting of alcohols into hydrogen and corresponding carbonyl compounds has potential applications in production chemical industry. Herein, we report that a heterogeneous photocatalyst (Ni-modified CdS nanoparticles) could efficiently split aldehydes or ketones stoichiometric manner under visible light irradiation. Optimized apparent quantum yields 38%, 46%, 48% were obtained at 447 nm for dehydrogenation methanol, ethanol, 2-propanol, respectively. In the case turnover number greater than...

Abstract A room‐temperature, visible‐light‐driven N‐centered iminyl radical‐mediated and redox‐neutral C−C single bond cleavage/radical addition cascade reaction of oxime esters unsaturated systems has been accomplished. The strategy tolerates a wide range O‐acyl oximes systems, such as alkenes, silyl enol ethers, alkynes, isonitrile, enabling highly selective formation various chemical bonds. This method thus provides an efficient approach to diversely substituted cyano‐containing ketones,...

Abstract A photocatalytic formal [3+2] cycloaddition of 2 H ‐azirines with alkynes has been achieved under irradiation by visible light in the presence organic dye photocatalysts. This transformation provides efficient access to highly functionalized pyrroles good yields and applied synthesis drug analogues. primary trial photocascade catalysis merging energy transfer redox neutral reactions was shown be successful.

Abstract A visible‐light photocatalytic generation of N‐centered hydrazonyl radicals has been accomplished for the first time. This approach allows efficient intramolecular addition radical to terminal alkenes, thus providing hydroamination and oxyamination products in good yields. Importantly, protocol involves deprotonation an NH bond oxidation radical, obviating need prepare photolabile amine precursors or stoichiometric use oxidizing reagents.

This minireview highlights the recent advances in chemistry of Hantzsch esters photoredox catalyzed organic synthesis, with particular emphasis placed on reaction mechanisms.

An unprecedented α-allylation of amines was achieved by combining palladium catalysis and visible-light photoredox catalysis. In this dual process, the catalytic generation allyl radical from corresponding π-allylpalladium intermediate without additional metal reducing reagents (redox-neutral). Various allylation products were obtained in high yields through cross-coupling under mild reaction conditions. Moreover, transformation applied to formal synthesis 8-oxoprotoberberine derivatives...

The first copper-catalyzed asymmetric decarboxylative [4 + 1] cycloaddition of propargylic carbamates and sulfur ylides was successfully developed. This strategy led to a series chiral indolines with synthetically flexible alkyne groups in good yields high enantio- diastereoselectivities (up 99% yield, 98% ee, >95:5 dr). A possible mechanism stereoinduction mode copper–allenylidenes were proposed as the dipolar intermediate.

Remote control: New strategies for the activation of remote C(sp3 )-H bonds by photoredox-catalyzed (PC) radical translocation via O- and N-centered radicals have recently been described. These methods enable controlled site-selective functionalization inert provide new opportunities reaction design (HAT=hydrogen atom transfer).

Catalytic asymmetric cycloadditions of reactive ketene intermediates provide new opportunities for the production chiral heterocyclic molecules. Though known over 100 years, ketenes still remain underexplored in field transition-metal (TM)-catalyzed because (1) ketenes, as highly electron-deficient species, are possibly unstable to low-valence TMs (i.e., decarbonylation or aggregation) and (2) conventional thermal synthesis from acyl chlorides amines may be incompatible with TM catalysis...

A novel visible-light-responsive chiral ligand has been developed by grafting a triplet state photosensitizer to bisoxazoline ligands. Complexation of this with Ni(acac)2 results in powerful catalyst for the asymmetric oxidation reaction β-ketoesters, which uses oxygen or air as green oxidant and visible light sunlight ideal driving force. Using protocol, products containing α-hydroxy-β-dicarbonyl motif are produced high yields excellent enantiopurities.