Abstract The development of versatile methods for the formation carbon‐nitrogen bonds has significant impact on synthetic chemistry community. However, it remains challenging owing to utilization costly catalyst systems and harsh reaction conditions. Compared conventional methods, photoredox catalysis which harnesses energy from light emerged as an environmentally benign cost‐effective strategy promoting C−N bond constructions. Furthermore, synergistic action with another catalytic process a...

We have presented a carbonate anion assisted photochemical protocol for the C-X bond activation. Anion-π interactions been leveraged to generate aryl radicals from easily accessible halides that are further utilized in C-P and C-B formation reactions with excellent reactivity broad functional group tolerance. Spectroscopic investigations DFT studies were conducted mechanistic insights. This inexpensive method alleviates use of photocatalyst need preactivation substrate light-induced activation bonds.

Thioesters play a crucial role in biological systems and serve as important building blocks for organic synthesis. Herein, Eosin Y TBHP mediated photochemical cross dehydrogenative coupling (PCDC) between feedstock aldehydes thiols has been described at room temperature to synthesize thioesters. This thioesterification protocol proceeds smoothly give the desired products good excellent yields by suitable PCDC of both alkyl/aryl- with variety alkyl/aryl-thiols generates water tBuOH green...

Here we report Eosin Y as a bimodular catalyst for Minisci-type acylation reactions. The formation of organic exciplexes between photoexcited and N-heteroarenes was found to be stabilizing factor photoacid catalysis under optimized conditions. Spectroscopic investigations such steady state fluorescence quenching dynamic lifetime experiments were employed better understand the role both photoredox photoacid. Feedstock aldehydes acyl radical precursors engaging in C-C bond reactions with...

A highly regioselective photocatalytic method to access a variety of biaryl motifs under metal-free conditions has been developed. The organophotocatalyst is involved in π–π stacking interactions with the alkyne species, which promotes this process thiophene. Mechanistic studies have shed light on these and overall process. Along broad functional-group tolerance excellent regioselectivity, protocol utilized late-stage functionalization pharmaceuticals other natural products.

This paper presents an organo-electrocatalysis method which demonstrates the dual role of organic bromide salt as a brominating agent and electrolyte for regioselective bromination imidazo heteroaromatic motifs.

Herein, we have established a phenalenyl-based molecular scaffold which serves as potent photoreductant utilizing the empty NBMO in presence of base to form radical anion which, upon photoexcitation, behaves stronger reductant and accomplishes cleavage strong C-X (X = Cl, Br, I) bonds under milder reaction conditions. The was found be involved dual role electron hydrogen atom donor. Further, aryl formed by homolysis this technique captured for Csp2-Csp2 coupling with unactivated arenes....

Metallo-electro catalysis has emerged as sustainable alternate to conventional transition metal methodologies. This review highlights the recent advances for formation of C–N bonds by merging with electrosynthesis.

An atom economic method demonstrates the involvement of noncovalent interaction via hydrogen or halogen bonding in triggering paired electrolysis for group transfer reactions. Specifically, this demonstrated bromination several aromatic and heteroaromatic compounds through activation C(sp3)-Br bond organic-bromo derivatives on demand. This electrochemical protocol is mild, mostly no additional electrolyte needed, which makes workup process straightforward. Unlike existing regioselective...

We report an organo-photocatalyzed carboacylation reaction that offers a springboard to create chemical complexity in diversity-driven approach. The modular one-pot method uses feedstock aldehydes and alcohols as acyl surrogates commercially available Eosin Y the photoredox catalyst, making it simple affordable introduce structural diversity. Several biologically relevant skeletons have been easily synthesized under mild conditions presence of visible light irradiation by fostering radical...

Au NPs multi yolk titania hollow shell structures Au@void@TiO2 were synthesized and applied for photoelectrochemical chemical catalysis. SiO2 nanospheres first to be used as templates the nanostructures. These then functionalized with gold nanoparticles (Au NP) using a bifunctional linker APTES [(3-Aminopropyl)triethoxysilane]. A coating was carried out on these Au-decorated spheres, followed by calcination enhance crystallinity of structures. Thereafter, template etched NaOH leaving behind...

An operationally simple process has been developed for the synthesis of unsymmetrical amines and α-amino carbonyl derivatives in absence a catalyst, ligand, oxidant, or any additives. Contrary to known reductive amination methods, this protocol is amenable substrates containing other reducible groups. This effectively results consecutive cleavage formation C-N bonds. DFT studies Hammett analysis provide useful insight into mechanism. The role noncovalent interactions as stabilizing factor...