Results 261 to 270 of about 480,912 (334)

Regio‐, Stereoselective, Aerobic and Metal‐Free Synthesis of Z‐Vinyl Sulfides: One‐Pot Hydroiodination of Internal Alkynes and in situ Sulfenylations

Advanced Synthesis &Catalysis, EarlyView.
Abstract A novel, metal‐free, air‐ and moisture‐compatible one‐pot tandem protocol for the regio‐ and stereoselective synthesis of Z‐vinyl sulfides (achieving yields up to 99%), is reported. This straightforward and efficient process combines the selective hydroiodination of internal alkynes, promoted by the eutectic mixture choline iodide (ChI)/p‐TsOH
Gloria Morís‐Menéndez, Sergio E. García‐Garrido, Pablo García‐Álvarez, Alejandro Presa Soto, Nicolás Ríos‐Lombardía, Joaquín García‐Álvarez   +5 more
wiley   +1 more source

Benchmarking of Trapped Ion Mobility Spectrometry in Differentiating Plasmalogens from Other Ether Lipids in Lipidomics Experiments. [PDF]

Anal Chem
Koch J, Neumann L, Lackner K, Fernández-Quintero ML, Watschinger K, Keller MA.   +5 more
europepmc   +1 more source

Chemoselective Synthesis of α‐Chloro and α,α‐Dichloro Acetamidines via the Carbenoids Addition to Inherently Low Electrophilic Carbodiimides

Advanced Synthesis &Catalysis, EarlyView.
Carbodiimides act as competent electrophilic synthons for the chemoselective addition of lithium mono‐ and di‐halocarbenoids. The transformation is provided through a single synthetic operation—hitherto elusive—halogenated acetamidines. Interestingly, the constitutively tamed electrophilicity of the starting materials is effectively counterbalanced by ...
Davide Castiglione, Margherita Miele, Alberto Nardi, Laura Castoldi, Vittorio Pace   +4 more
wiley   +1 more source

A Novel Synthesis of Highly Efficient Antimicrobial Quaternary Ammonium Pyridine Resin and Its Application in Drinking Water Treatment. [PDF]

Polymers (Basel)
Zhang H, Liu H, Wang W, Dong F, Zuo Y, Huang S, Zhang D, Wu J, Cheng S, Li A.   +9 more
europepmc   +1 more source

Deazaflavin‐Catalyzed Arylation of White Phosphorus with Aryl Bromides and Chlorides

Advanced Synthesis &Catalysis, EarlyView.
The 5‐aryldeazaflavin photocatalyst o‐Me‐dFl catalyzes the arylation of white phosphorus with aryl chlorides and bromides under near UV‐LED irradiation, affording triarylphosphines and tetraarylphosphonium salts. Nuclear magnetic resonance studies and density functional theory calculations offer insights into the reaction pathway.
Jannes Rückel, Tetiana Pavlovska, Martin Gawron, Radek Cibulka, Robert Wolf   +4 more
wiley   +1 more source

Unraveling the antifungal and aflatoxin B1 inhibitory efficacy of nano-encapsulated caraway essential oil based on molecular docking of major components. [PDF]

Sci Rep
Hamza ZK, Abosereh NA, Salim RG, El-Sayed AF, Aly SE.   +4 more
europepmc   +1 more source

Isomerization of Halogen Alkyls as Revealed by the Raman Effect

, 1940
Willy Nagai
openalex   +2 more sources

Three‐Component Synthesis of γ‐Amino Esters with α‐Quaternary Carbon Centers via NHC/Photoredox Dual Catalysis

Advanced Synthesis &Catalysis, EarlyView.
γ‐Amino acid derivatives with an α‐quaternary center are prevalent in medicinally important compounds. A dual N‐heterocyclic carbene/photocatalytic pathway is developed for the three‐component synthesis of α, α ‐disubstituted γ‐amino esters. This methodology allows for the rapid synthesis of diverse libraries of γ‐amino esters in good yields.
Adam X. Wayment, Karl A. Scheidt
wiley   +1 more source

Switching mesoionic carbene-organocatalysis from radical to ionic pathway through base-controlled formation of Breslow intermediates <i>versus</i> Breslow enolates. [PDF]

Chem Sci
Jiao J, Zhang Z, Lu G, Huang S, Bian Y, Gao F, Bertrand G, Yan X.   +7 more
europepmc   +1 more source

Harnessing Vinylogy with Radicals: Photoinduced γ‐Benzylation Reactions of 2‐Silyloxyfurans

Advanced Synthesis &Catalysis, EarlyView.
Two radical‐mediated benzylations of 2‐silyloxyfurans, promoted by visible light and suitable photoredox catalysts have been disclosed. A broad scope of γ‐benzyl butenolides was obtained in one step, some of which were used as strategic precursors to bio‐valuable chiral butanolides.
Enrico Marcantonio, Debora Guazzetti, Luca Aimi, Kelly Bugatti, Pedro Mena, Marco Giannetto, Simone Fortunati, Andrea Sartori, Lucia Battistini, Leonardo Andreoni, Marco Lombardo, Franca Zanardi, Claudio Curti   +12 more
wiley   +1 more source