Results 131 to 140 of about 48,499 (273)

Asymmetric Reduction of Unactivated Alkenes

Chemistry – A European Journal, EarlyView.
Unactivated alkenes rank among the most inert functional groups in synthesis and their selective reduction remains challenging. This Review charts the evolution from classical metal‐catalyzed hydrogenation to radical hydrogen atom transfer (HAT) and emerging biocatalytic concepts, highlighting how complementary mechanistic strategies, including the ...
Nico D. Fessner, Sebastian Roth, Richard Niese, Michael Müller   +3 more
wiley   +1 more source

Insights into the Photocatalytic Arene Bromination Enabled by Cs2AgBiBr6 Microparticles

Chemistry – A European Journal, EarlyView.
A sustainable photocatalytic bromination of electron‐rich arenes is enabled by low‐toxicity Cs2AgBiBr6 double‐perovskite microparticles using HBr as an atom‐economical bromine source. Surface‐derived bromine radicals drive highly selective mono‐bromination under mild conditions.
Daniele Conelli, Chiara Lo Porto, Mokurala Krishnaiah, Kimmo Lahtonen, G. Krishnamurthy Grandhi, Nicola Margiotta, Paola Vivo, Gian Paolo Suranna, Roberto Grisorio   +8 more
wiley   +1 more source

Remote Migratory Reductive Arylation of Unactivated Alkenes Enabled by Electrochemical Nickel Catalysis

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
we have developed an electrochemical Ni−H catalyzed arylation coupling method of unactivated alkenes with aryl halides. The method displays broad functional group tolerance and proceeds under very mild conditions. Furthermore, aryl chlorides were also compatible substrates in this catalytic system. This conversion holds significant implications for the
Chao Xu, Ru‐Han A, Xiao‐Feng Wu
wiley   +1 more source

Phosphorescent Platinum(II) Complexes With Diazinedipyrrolide Pincer Ligands: Structure and Photophysical Properties

European Journal of Inorganic Chemistry, EarlyView.
A new family of phosphorescent Pt(II) complexes with pyrimidinedipyrrolide ligands, including a pyrazine analog, was designed and synthesized. Their emission properties can be finely tuned via ligand modification, revealing strong phosphorescence originating from intraligand charge transfer transitions.
Marcela Horáková, Alexandre Rico, Filip Bureš, Pascal le Poul, Sébastien Gauthier, Jiří Váňa, Zdeňka Růžičková, Sylvain Achelle   +7 more
wiley   +1 more source

Heteroaryl‐Substituted Polyfluorobiaryls Synthesis via Palladium‐Catalyzed Double CH Bond Functionalization Using Palladium 1,4‐Migration Associated to Direct Arylation

European Journal of Organic Chemistry, EarlyView.
Fluoro substituents on a benzene ring linked to a 2‐bromoaryl group enables the selective activation of one of its CH bonds via Pd‐1,4‐migration. Then, Pd‐catalyzed direct coupling with heteroarenes produces C2’‐heteroarylated 1,1′‐biaryls. In this reaction, the new C–C bond arises from the functionalization of two CH bonds.
Norman Le Floch, Thierry Roisnel, Henri Doucet   +2 more
wiley   +1 more source

EDA Complex–Mediated C(sp3)–H Cross‐Dehydrogenative Coupling Enables Synthesis of Noncanonical α,β‐Diamino Acids

European Journal of Organic Chemistry, EarlyView.
Access to nonproteinogenic α,β‐diamino acids from simple feedstock precursors is of great interest to generate medicinal small molecule libraries. We report a regioselective photoinduced C(sp3)–C(sp3) cross‐dehydrogenative coupling (CDC) of N‐arylglycine derivatives with amides.
Krishnakumar Sachidanandan, Cole Stenftenagel, Athul Joshy, Alexander M. Cluff, Sébastien Laulhé   +4 more
wiley   +1 more source

Synthesis and reactivity of tricarbonyl(1-methoxycarbonyl-5-phenylpentadienyl)iron(1+) cation [PDF]

, 2004
Tricarbonyl(1-methoxycarbonyl-5-phenylpentadienyl)iron(1+) hexafluorophosphate (7) was prepared in two steps from tricarbonyl(methyl 6-oxo-2,4-hexadienoate)iron.
Bennett, Dennis W, Chaudhury, Subhabrata, Donaldson, William, Haworth, Daniel T., Kloss, Jennifer M, Siddiquee, Tasneem   +5 more
core   +1 more source

Silyl Rearrangements in Gold‐Catalyzed Transformations

European Journal of Organic Chemistry, EarlyView.
The synergy between the exceptional ability of gold catalysts to activate unsaturated substrates and the inherent tendency of organosilicon reagents to undergo silyl‐group rearrangements has unlocked a range of novel transformations, enabling access to otherwise challenging molecular architectures.
Patricia García‐Martínez, Luis A. López   +1 more
wiley   +1 more source

Diterpenoid Diversity across Land Plants

Helvetica Chimica Acta, EarlyView.
Here we bridge the knowledge of diterpene chemical diversity, biosynthesis, and evolution from nonvascular mosses and liverworts to that known from vascular plants. ABSTRACT The diverse array of diterpenoid natural products stems from the ease of manipulating the promiscuity of diterpene cyclases.
Anita Berg, Chad K. Papenfuhs, Amy E. Fraley   +2 more
wiley   +1 more source

Recent progress on stimuli‐responsive chitosan‐based biomaterials as drug carriers

Interdisciplinary Medicine, EarlyView.
This review discusses the recent progress in chitosan‐based drug delivery systems that respond to pH, redox, enzymes, reactive oxygen species, and combined stimuli. It examines design strategies, key mechanisms, and therapeutic applications, and also addresses current challenges while suggesting future approaches to enhance clinical translation and ...
Changlu Xu, Yi‐Tung Lu, Bin Yang, Zhi Li, Kui Zeng   +4 more
wiley   +1 more source