Results 171 to 180 of about 12,918 (277)

Enantioselective Contrathermodynamic Olefin Isomerization. [PDF]

J Am Chem Soc
Imbriaco BL, Lee S, Xu EY, Zhao K, Knowles RR.   +4 more
europepmc   +1 more source

Titanium‐Catalyzed Diastereoselective Keto‐ and Iminonitrile Cyclizations

Chemistry – A European Journal, EarlyView.
The titanium(III)‐catalyzed diastereoselective cyclization of readily‐available substituted ketonitriles gives cyclopentanones in good yield and stereoselectivity. Subsequent 1,2‐addition allows the preparation of cyclopentyls with three consecutive stereocenters.
Christoph Kern, Ritu Singh, Michael A. Unkrig‐Bau, Lukas Jakob, Jan Streuff   +4 more
wiley   +1 more source

Divergent Synthesis of 1-Aminonaphthalene Derivatives via the Diels-Alder Reaction of 3-Aminoarynes. [PDF]

J Org Chem
Okada T, Kawada M, Yoshida S.
europepmc   +1 more source

Asymmetric Diphosphane Dioxides With A–π–A–π’–D Scaffolds for High‐Purity Deep‐Blue Luminescence

Chemistry – A European Journal, EarlyView.
Diphosphane dioxide‐based luminophores with donor–π–acceptor– π’–acceptor scaffold enable efficient deep‐blue emission from tunable charge‐transfer states affording high photoluminescence up to 95%. OLEDs reach EQE 4.9%, aided by triplet–triplet annihilation, highlighting a practical route to high‐performance blue emitters.
Eetu Hakkarainen, Zong‐Ying Liu, Jhon Sebastian Oviedo Ortiz, Nicolas Vanthuyne, Jeanne Crassous, Ondřej Mrózek, Fabien B. L. Cougnon, Wen‐Yi Hung, Pi‐Tai Chou, Igor O. Koshevoy, Andrey Belyaev   +10 more
wiley   +1 more source

Safety assessment of the substance phosphorus acid, triphenyl ester, polymer with alpha-hydro-omega-hydroxypoly[oxy(methyl-1,2-ethanediyl)], C10-16 alkyl esters, for use in food contact materials. [PDF]

EFSA J
EFSA Panel on Food Contact Materials (FCM), Lambré C, Crebelli R, da Silva M, Grob K, Lampi E, Milana MR, Pronk M, Ščetar M, Theodoridis G, Van Hoeck E, Waegeneers N, Cariou R, Castle L, Di Consiglio E, Franz R, Tietz T, Comandella D, Rivière G.   +18 more
europepmc   +1 more source

Lysosome‐Targeted Squaramide Anion Transporters

Chemistry – A European Journal, EarlyView.
Lysosome‐targeted squaramide anion transporters elicit different biological effects depending on the targeting group employed. ABSTRACT Targeting anion transporters to specific organelles has previously been shown to be an effective strategy to enhance their cytotoxicities against cancerous cell lines.
Elba Feo, Edward York, Anthony Thai, William G. Ryder, Daniel A. McNaughton, Philip A. Gale   +5 more
wiley   +1 more source

Propylene Glycol Ethers: Widespread Use and Missing Neurotoxicity Testing. [PDF]

Toxics
Hopf NB, De Luca HP.
europepmc   +1 more source

Oxidative Generation and Reactivity of the Cyclopropyl Radical From a Martin Silicate

Chemistry – A European Journal, EarlyView.
A photoredox strategy employing Martin silicates enables the oxidative generation and controlled capture of cyclopropyl radicals, including the naked one, long considered challenging intermediates. The method affords functionalized cyclopropanes through both Giese‐type additions and dual nickel/photoredox C(sp3)−C(sp2) cross‐couplings.
Amal Lakhal, Alexandre Millanvois, Louis Fensterbank, Cyril Ollivier   +3 more
wiley   +1 more source

<i>O</i>-Heterocycles-Fused Indoles via Tandem 1,2-Indole Migration-Hydroxycyclization Reactions in 2-Hydroxyalkyl-3-propargylindoles. [PDF]

Org Lett
Renedo L, Solas M, Silva López C, Suárez-Pantiga S, Sanz R.   +4 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