Results 271 to 280 of about 70,860 (329)

Versatile Palladium‐Catalyzed C‐H Arylation of Fluoroarenes with 2‐Chloropyridine Derivatives

Chemistry – A European Journal, EarlyView.
Direct C─H arylation of fluoroarenes with 2‐chloropyridines is enabled by a simple Pd/SPhos system in isopropyl acetate. The method uses inexpensive reactants and shows broad scope and high yields. DFT computations explain reactivity and selectivity.
Federico Belnome, Péter P. Fehér, András Stirling, Csongor G. Németh, Tamás Hergert, György M. Keserű, Péter Ábrányi‐Balogh   +6 more
wiley   +1 more source

Vitamin B₂ Catabolism: Nature's Route from Riboflavin to Acetoacetate and Pyruvate. [PDF]

ACS Cent Sci
Sinha S, Jian X, Adak S, Naseem S, Steiner JL, Fedoseyenko D, Thiagarayaselvam A, Begley TP.   +7 more
europepmc   +1 more source

The One‐Step Synthesis of Biologically Active Isochromans from Lignin‐Derived Aromatic Monomers in Tunable Deep Eutectic Solvents

Chemistry – A European Journal, EarlyView.
A straightforward one‐step protocol enables the synthesis of bio‐based and biologically active isochromans through the Oxa‐Pictet cyclization involving diverse aldehydes, including vanillin in combination with lignin‐derivable homovanillyl alcohol, a prominent aromatic platform chemical obtainable via diol‐assisted fractionation of lignocellulose ...
Anjali Kottayi, Anastasiia M. Afanasenko, Antonio A. Castillo‐Garcia, Walid A. M. Elgaher, Jörg Haupenthal, Anna K. H. Hirsch, Katalin Barta   +6 more
wiley   +1 more source

Pentacyclic aromatic heterocycles from Pd-catalyzed annulation of 1,5-diaryl-1,2,3-triazoles. [PDF]

Beilstein J Org Chem
Lathrum KD, Hanneken EM, Grzelak KR, Fletcher JT.   +3 more
europepmc   +1 more source

Photochemistry of Aromatic N‐Oxides in Water Probed by Time‐Resolved X‐ray Absorption Spectroscopy

Chemistry – A European Journal, EarlyView.
Time‐resolved XAS at the nitrogen and oxygen K‐edges is applied to the photorearrangement of two N‐oxides in water. Pyridine N‐oxide rapidly forms the oxaziridine isomer. Pyridazine N‐oxide undergoes ring opening to the diazo compound, without any evidence of intermediates.
Maximilian Paradiz Domínguez, Robby Büchner, Mattis Fondell, Albert M. Brouwer   +3 more
wiley   +1 more source

Synthesis of heterocycle based carboxymethyl cellulose conjugates as novel anticancer agents targeting HCT116, MCF7, PC3 and A549 cells. [PDF]

Sci Rep
Mohamed-Ezzat RA, Elshahid ZA, Gouhar SA, Dacrory S.   +3 more
europepmc   +1 more source

Stafib‐2‐CR: an Improved Nanomolar and Selective Inhibitor of the Transcription Factor STAT5b Developed by Conformational Restriction of Stafib‐2

Chemistry – A European Journal, EarlyView.
Conformational restriction strategies to increase the activity and selectivity of the STAT5b inhibitor Stafib‐2 are presented. The best conformationally restricted inhibitor Stafib‐2‐CR has threefold higher activity against STAT5b than Stafib‐2. A cell‐permeable prodrug of Stafib‐2‐CR inhibits phosphorylation of STAT5b in cultured human leukemia cells ...
Theresa Münzel, Angela Berg, Christoph Protzel, Sylvie Schäfer, Alexander Jensen‐Feinhals, Thorsten Berg   +5 more
wiley   +1 more source

Regiodivergent α- and β-Functionalization of Saturated <i>N</i>-Heterocycles by Photocatalytic Oxidation. [PDF]

J Am Chem Soc
Rackl JW, Müller AF, Profyllidou A, Wennemers H.   +3 more
europepmc   +1 more source

One‐Pot Transition‐Metal‐Free Methods for the Synthesis of All Three Bonds of the Alkyne's Triple Bond

Chemistry – A European Journal, EarlyView.
One‐pot transition‐metal‐free methods for the synthesis of all three bonds of the alkyne's triple bond are reviewed. After analysis of several named reactions and discussion of improvements, recent advances in the synthesis of alkynes are discussed. Each section contains a proposed reaction mechanism and analysis of the strengths and weaknesses of the ...
Eugene Kim, Yu Wu, Judith N. Currano, Jianyou Mao, Patrick J. Walsh   +4 more
wiley   +1 more source

HTA - An open-source software for assigning head and tail positions to monomer SMILES in polymerization reactions. [PDF]

J Cheminform
de Souza Ferrari B, Giro R, Steiner MB.
europepmc   +1 more source