Results 231 to 240 of about 1,208,360 (336)

Annulation of Hydroxyarenes and Derivatives with Bicyclo[1.1.0]butanes by Synergistic Combination of Metal Lewis Acid and Organic Acid. [PDF]

JACS Au
Guo Q, Ni D, Deng L.
europepmc   +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

Sulfur‐Directed Construction of Vinyl Cyclopropanes from 1,3‐Dienes

Angewandte Chemie International Edition, EarlyView.
Sulfur takes control. A pending thioether acts as a molecular compass, directing carbene addition to the 1,3‐diene scaffold with exceptional regio‑ and diastereocontrol to forge sulfur‐substituted vinyl cyclopropanes (S‐VCPs) — molecular architectures inaccessible via conventional cyclopropanation strategies.
Anna Keimer, Jonas Rettig, Tim‐Niclas Streit, Bob Barthel, Mélissa Calmels, Moritz Malischewski, Franz‐Lucas Haut   +6 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

Late‐Stage Functionalization of Peptides on the Solid Phase

Angewandte Chemie International Edition, EarlyView.
Peptide modifications are essential to control pharmacodynamic and pharmacokinetic properties of peptide drugs. Consequently, strategies that allow for efficient and rapid incorporation of non‐canonical modifications into peptides in parallel formats are highly sought after.
Marius Werner, Truc Lam Pham, Franziska Thomas   +2 more
wiley   +1 more source

Development and Mechanistic Studies of Oxidative Prins-Semipinacol Cyclization Reactions. [PDF]

Org Lett
Kogut MO, Garn KR, Kerner MJ, Floreancig PE.   +3 more
europepmc   +1 more source

The catalytic enantioselective [1,2]-Wittig rearrangement cascade of allylic ethers. [PDF]

Nat Chem
Kang T, O'Yang J, Kasten K, Allsop SS, Lewis-Atwell T, Farrar EHE, Juhl M, Cordes DB, McKay AP, Grayson MN, Smith AD.   +10 more
europepmc   +1 more source

Geminal Difunctionalization of Ketones via C─S Bond Insertion of Photogenerated Donor–Donor Diazo Compounds

Angewandte Chemie International Edition, EarlyView.
Geminal difunctionalization of readily available building blocks provides rapid access to molecular complexity. This work introduces a strategy for installing two distinct functional groups on a carbonyl carbon by transforming it into a donor–donor diazo compound, enabling both batch and flow applications with broad solvent compatibility.
Vincent George, Aryaman Pattanaik, Daniel Maddox, Lukas M. Sigmund, Giovanna Mejia, Sara Pahlén, Simon O. Angerer, Maria Schmoll, Lisa Marie Schneider, Nidhal Selmi, Mikhail Kabeshov, Giulia Bergonzini, Julia Rehbein, Burkhard König   +13 more
wiley   +1 more source

Copper-catalyzed enantioselective interrupted azide-alkyne cycloaddition to access axially chiral diaryl ethers. [PDF]

Chem Sci
Wu R, Chen L, Chen Y, Wu Q, Chen Q, Lin A, Yao H, Li Q, Gao S.   +8 more
europepmc   +1 more source

2,3-Dichloro-5,6-Dicyano-1,4-Benzoquinone (DDQ)-Mediated CC Bond Formation: Redox Strategies from Stoichiometric to Catalytic Systems. [PDF]

ChemistryOpen
Cha D, Min SJ.
europepmc   +1 more source