Results 131 to 140 of about 20,841 (234)

SO2 Transfer Enabled by an Easy‐to‐Handle Ionic Liquid

Chemistry – A European Journal, EarlyView.
Best of both worlds: The ionic liquid [NEt3Me][Cl(SO2)n] unites the atom economy and low cost of sulfur dioxide with the safety and applicability of common surrogates, streamlining SO2 transfer to access to 3‐sulfolenes, sulfonamides, and SuFEx reagents.
Johanna S. Sturm, Letizia Lanfredi, Severin Erbertseder, Marius Balizs, Patrick Voßnacker, Simon Steinhauer, Merlin Kleoff, Anja Wiesner, Niklas Limberg, Patrick Pröhm, Franz‐Lucas Haut, Sebastian Riedel   +11 more
wiley   +1 more source

Protective actions of 17β-estradiol and progesterone on oxidative neuronal injury induced by organometallic compounds. [PDF]

Oxid Med Cell Longev, 2015
Ishihara Y, Takemoto T, Ishida A, Yamazaki T.   +3 more
europepmc   +1 more source

Stereoretentive Nucleophilic Aromatic Substitution Accesses Atropisomeric 4‐Amino‐N‐Arylquinolinium Salts

Chemistry – A European Journal, EarlyView.
Quinolin‐4‐ones were converted to chloroquinolinium salts, allowing formation of axially chiral aminoquinolinium salts via an enantioretentive SNAr reaction with a variety of amine nucleophiles. The salts have a high rotational barrier, with a racemization half‐life of ∼1000s of years.
Darren Holmes, Nia Foster, Saima Ansari, Paul Kavanagh, Paul Dingwall, Peter C. Knipe   +5 more
wiley   +1 more source

Synthesis of sterically shielded piperidine nitroxides via acid-catalyzed heterocyclization of β-aminoketone derivatives with ketones. [PDF]

Beilstein J Org Chem
Gulman MM, Glazachev YI, Dobrynin SA.
europepmc   +1 more source

Azidophosphonamido Rhodium(I) and Iridium(I) Complexes: Synthesis, Properties, and Linkage Isomerism

Chemistry – A European Journal, EarlyView.
A family of azidophosphonamido ligands and their corresponding rhodium(I) and iridium(I) complexes were synthesized. The rich reaction chemistry of these species revealed unusual linkage isomerization processes and bonding motifs. M = Rh, Ir; Mes = 2,4,6‐Me3C6H2. ABSTRACT A series of azidophosphonamido rhodium(I) and iridium(I) complexes ([iPr2P(N3R)NR]
Emily L. Trew, Daisy E. Cruz‐Milette, Douglas Turnbull, Paul G. Hayes   +3 more
wiley   +1 more source

Asymmetric Decarboxylative Protonation and Deuteration of Cyanoacetic Acids Using an Organometallic Proton Shuttle. [PDF]

J Am Chem Soc
Zheng WF, Wu G, Hou M, Li K, Qi X, Huang Z.   +5 more
europepmc   +1 more source

Nitrooxylation in Organic Synthesis: From Classical Nitrate Ester Formation to Modern Catalytic Strategies

Chemistry – A European Journal, EarlyView.
Nitrooxylation—the installation of nitrate esters (–ONO2) has evolved from classical mixed‐acid protocols to catalytic and mechano‐, flow‐, photo‐, and electrochemical strategies. This review delineates ionic and radical manifolds for C–ONO2 bond formation, emphasizing mechanistic control, selected substrate scope, and selectivity.
Jayanta Dey, Dmitry Katayev
wiley   +1 more source

Stereoselective additions to alkenylphosphonium salts for the synthesis of P-stereogenic compounds. [PDF]

Chem Sci
Chen XB, Padín D, Feringa BL.
europepmc   +1 more source

Synthesis and characterization of amphiphilic nitroxide 1,1,3,3–tetraethylisoindoline–2–oxyl–5–sodium sulfonate (TEIOSNa)

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The synthesis and characterization of an amphiphilic nitroxide to be used as a controlling agent in a nitroxide‐mediated living radical polymerization in aqueous dispersion media is presented. In the first stage of nitroxide synthesis (phthalimide protection), two reaction methods were employed: traditional and microwave.
Enrique García‐Leal, Martha Eugenia Albores Velasco, René O. Vargas, Rubén Mil‐Martínez   +3 more
wiley   +1 more source

Editorial

CHIMIA, 2017
Alessandro Mordini
doaj