Results 191 to 200 of about 210,328 (345)

Electrocatalytic Dehydrogenative Lactonization of Benzylic Alcohols: A Sustainable Access to Phthalides via N‐hydroxyphthalimide Mediation

Advanced Synthesis &Catalysis, EarlyView.
A mild, scalable electrocatalytic method for direct lactonization of benzylic alcohols to phthalides using N‐hydroxyphthalimide as a redox mediator is reported. This metal‐free process proceeds via a phthalimide‐N‐oxyl‐mediated hydrogen atom transfer mechanism, shows broad scope with good to excellent yields, and enables late‐stage functionalizations ...
Pietro Ronco, Antonia Simi, Enrico Lunghi, Emanuele Casali, Giovanni Lenardon, Alessio Porta, Giuseppe Zanoni   +6 more
wiley   +1 more source

Skeletal editing of 4-arylpyrimidines into diverse nitrogen heteroaromatics via four-atom synthons. [PDF]

Nat Commun
Li S, Shi Y, Tang J, Yan M, Huang S, Dou T, Wang S, Jin X, Su Z, Jiang W, Xu J, Zheng X, Li R, Chen H, Xue W, Fu H.   +15 more
europepmc   +1 more source

A Mild and Efficient Iridium‐Catalyzed Method for Aldimine Hydrogenation

Advanced Synthesis &Catalysis, EarlyView.
A mild, efficient, and broadly applicable iridium‐catalyzed method for aldimine hydrogenation, facilitating access to an array of corresponding amine products in high isolated yields is reported. The developed methodology employs a bidentate iridium‐N‐heterocyclic carbene‐phosphine complex for use at low catalyst loadings, and proceeds under an ...
Aidan McKeown, Jonathan A. Taylor, Laura C. Paterson, David M. Lindsay, William J. Kerr   +4 more
wiley   +1 more source

Synthesis of imidazopyridines <i>via</i> NaIO₄/TBHP-promoted (3 + 2) cycloaddition and biological evaluation as anticancer agents. [PDF]

RSC Adv
Luo H, Hu Z, Shi J, Lou Y, Shi Z, Jin X, Chen J, Liu X, Huang Q.   +8 more
europepmc   +1 more source

Complexes of the 4d- and 5d-Groups. IV. Electron Transfer Bands with Special Application to M. Delépine's Complexes and a Transition from Iridium(III) to Pyridine, with some Remarks about Intermediate Coupling in Halide Complexes and the Uranyl Ion. [PDF]

, 1957
Chr. Klixbüll Jørgensen, Torsten Lundström, Ora Patoharju, B. Noer, L. Reio   +4 more
openalex   +1 more source

Electrochemical Trifluoromethylchlorosulfonylation of Alkenes via Copper‐Mediated SO2Cl Radical Transfer

Advanced Synthesis &Catalysis, EarlyView.
This article reports an electrosynthetic method for vicinal trifluoromethylchlorosulfonylation of alkenes using [Cu(MeCN)4]PF6 and triethylamine, without elaborate ligands. The reaction efficiently adds CF3 and SO2Cl across diverse unactivated alkenes with broad functional group tolerance.
Sachini Rodrigo, Melanie S. Sanford, Long Luo   +2 more
wiley   +1 more source

Recent Advances in Visible Light-Induced C-H Functionalization of Imidazo[1,2-a]pyridines. [PDF]

Molecules
Gao J, Fu X, Yang K, Liu Z.
europepmc   +1 more source

Ni Single Atoms in Zeolite Beta for Selective Alkyne Hydrogenation

Advanced Sustainable Systems, EarlyView.
Single‐atom Ni in zeolite Beta (Ni1/BEA) selectively remove trace acetylene from ethylene. Ni1/BEA achieve full conversion with ≈89% ethylene selectivity, stable for 24 h without coking, and 12 times higher TOF than prior zeolite‐supported single‐atom Ni catalysts. Na+ exchange suppress Brønsted acid‐catalyzed oligomerization. Under ethylene‐rich feeds,
Essa Alhashmi, George Ebri, Klaus Hellgardt   +2 more
wiley   +1 more source

Pyrrolidine synthesis via ring contraction of pyridines. [PDF]

Nat Commun
Ueno R, Hirano S, Takaya J.
europepmc   +1 more source

Sulfur-containing Pyridine Derivatives. XLVI. Synthesis of 7-Bromopyrido [3, 4-d] thiazoles

, 1956
Torizo Takahashi, Osamu Yamashita
openalex   +2 more sources