Results 51 to 60 of about 6,933 (191)

Cyclopropylamine‐Derived Distonic Iminium Radicals: Photoinduced Strategies in Chemo‐ and Stereo‐Selective Synthesis

Chemistry – A European Journal, EarlyView.
Cyclopropylamines have emerged as powerful photocatalytic building blocks. Upon light‐induced single‐electron oxidation, they undergo strain‐release ring opening to generate distonic iminium radicals that enable diverse transformations, including ring‐opening functionalization, formal [3 + 2] cycloadditions, radical cascades, and asymmetric bond ...
Maria Chiara Cabua, Alberto Luridiana, Francesco Secci, Emanuele Cocco   +3 more
wiley   +1 more source

Iodine‐Mediated Electrochemical Diastereoselective Synthesis of Enaminones

ChemElectroChem
An efficient iodine‐mediated electrochemical method for the synthesis of enaminones from thioamides and organic diazo compounds is reported. The transformation proceeds under mild and sustainable conditions, using electric current and avoiding the need ...
Ijaz Khan, Głowacki Michał P., Rybicka‐Jasińska Katarzyna   +2 more
doaj   +1 more source

Hybrid Macrocyclic Peptides — Synthetic Strategies to Diversify and Cyclize Peptide Libraries in Phage Display Selections

Chemistry – A European Journal, EarlyView.
Hybrid macrocyclic peptides unite genetically encoded peptide libraries with the structural complexity of synthetic small molecules. This Review critically analyzes phage‐compatible cyclization and diversification chemistries, highlights emerging opportunities beyond traditional cysteine‐based approaches, and outlines how future advances may enable the
Titia Rixt Oppewal, Clemens Mayer
wiley   +1 more source

Photo-cycloaddition reactions of vinyldiazo compounds

Nature Communications
Heterocyclic rings are important structural scaffolds encountered in both natural and synthetic compounds, and their biological activity often depends on these motifs.
Ming Bao, Klaudia Łuczak, Wojciech Chaładaj, Marriah Baird, Dorota Gryko, Michael P. Doyle   +5 more
doaj   +1 more source

Remediation of Organic Pollutant for Wastewater Treatment by Employing Sustainable Graphene Oxide/NiO‐ZrO2/Zeolite Ternary Composite Material

CleanMat, EarlyView.
Graphene oxide/NiO‐ZrO2/zeolite ternary composite was synthesized hydrothermally. Efficient adsorption of Congo red onto GO/NiO‐ZrO2/zeolite composite was studied. ABSTRACT The present study employs a novel method for the synthesis of graphene oxide (GO) based ternary composite utilized for the adsorption of Congo red (CR), an anionic dye molecule. The
Hidaya Narzary, Nituraj Mushahary, Bipul Das, Sanjay Basumatary   +3 more
wiley   +1 more source

The Chemistry of Diazo-Compounds. [PDF]

Journal of the American Chemical Society, 1908
n ...
openaire   +1 more source

Retro‐Hetero‐Michael Addition Strategies in Organic Synthesis

European Journal of Organic Chemistry, EarlyView.
In this review, synthetic approaches to carbo‐ and heterocyclic compounds, including natural products, published in the last 15 years (2011–2025) which have either relied upon or included a retro‐hetero‐Michael addition step at any stage are discussed.
Dina Scarpi, Ernesto G. Occhiato
wiley   +1 more source

Diarylmethyl Ethers for the Protection of Polyols

Journal of Chemistry, 2013
The paper discusses the use of diarylmethyl ethers for the protection of hydroxyl groups, in particular, carbohydrate hydroxyl groups. The formation of these ethers can be done nonselectively by the thermal reactions of diryldiazomethanes via a carbene ...
Sigthor Petursson
doaj   +1 more source

Mechanistic Dichotomy in Enantioselective Pd‐Catalyzed Alkylation of Pyrroles With Diazoesters

European Journal of Organic Chemistry, EarlyView.
Ligand‐controlled mechanistic divergence controls the Pd‐catalyzed asymmetric alkylation of pyrroles with diazoesters. While bipyridine ligands promote a conventional metal‐carbene pathway, bipyridine‐N,N′‐dioxide ligands redirect catalysis through electrophilic CH metalation before carbene transfer.
Vladimir Yu. Vaganov, Yasuaki Fukazawa, Svyatoslav M. Pechenkin, Vladimir S. Hein, Aleksandr E. Rubtsov, Andrei V. Malkov   +5 more
wiley   +1 more source

Catalytic asymmetric constructions of nitrogen, boron and carbon continuous stereogenic centers

Nature Communications
Precise construction of molecular chirality is a longstanding scientific challenge in synthetic chemistry. Although methods to enantioselectively assemble consecutive carbon stereocenters are abundant, courses to establish enriched continuous ...
Guan Zhang, Junyi Jia, Xuzhao Du, Bofan Feng, Kai Yang, Peiyuan Yu, Qiuling Song   +6 more
doaj   +1 more source