Results 171 to 180 of about 17,342 (289)

The Relative Lewis Acidities of Some Halogens and Interhalogen Compounds

, 1963
The halogens and interhalogen compounds will act as Lewis acids when in the presence of an appropriately constituted solvent containing an unshared electron pair.
Joppa, Betty J.
core  

Zinc accumulation in the jaw of Nereis aibuhitensis. [PDF]

J Exp Biol
Kato Y, Kashiwabara W, Iijima M, Shimizu K, Negishi L, Kurumizaka H, Maekawa Y, Sasaki T, Hokura A, Homma-Takeda S, Suzuki M.   +10 more
europepmc   +1 more source

Direct δ‐Lactone Synthesis From Free Alcohols via Photoinduced δ‐C(sp3)–H Carbonylation in Flow

Angewandte Chemie, EarlyView.
Herein, we have developed a photo‐flow platform for the δ‐C(sp3)─H carbonylative lactonization of free alcohols with carbon monoxide. The transformation integrates alkoxyl radical generation, selective 1,5‐HAT, CO incorporation, and radical–polar crossover to enable direct access to δ‐lactones from simple alcohol precursors.
Prakash Chandra Tiwari, Runkang Liu, Timothy Noël   +2 more
wiley   +2 more sources

Which halogen to choose? Comparing the effects of chlorine and fluorine as bioisosteric substituents in drug design. [PDF]

Chem Sci
Summerfield CJE, Pattison G.
europepmc   +1 more source

Transition Metal‐Free Heteroarene Insertion Into C─C Bonds of Benzocyclobutenones

Angewandte Chemie, EarlyView.
A transition metal‐free insertion of five‐membered heteroarenes into the C─C bonds of benzocyclobutenones has been achieved under mild and operationally simple conditions. This method provides an efficient and modular approach to access fused partially saturated hetero‐polycyclic scaffolds that exist in many bioactive molecules.
Cole J. Wagner, Guangbin Dong
wiley   +2 more sources

Reactivity umpolung of the cycloheptatriene core in hexa(methoxycarbonyl)cycloheptatriene. [PDF]

Beilstein J Org Chem
Platonov DN, Belyy AY, Salikov RF, Erokhin KS, Tomilov YV.   +4 more
europepmc   +1 more source

Isotopic Evidence Suggests a High Contribution of Hypohalous Acids to Sulfate Formation in the Coastal Marine Boundary Layer. [PDF]

Environ Sci Technol
Chen Q, Moon AR, Alexander B, Schauer A, Xia M, Jiang Y, Zou Z, Wang T.   +7 more
europepmc   +1 more source

Chemie und Pharmazie in die Nachhaltigkeit einbetten

Angewandte Chemie, EarlyView.
Chemie und Pharmazie sind mit ihren Produkten und Prozessen grundlegend für unseren hohen Lebensstandard. Es ist wesentlich, ihre Verbindung mit der Nachhaltigkeit zu verstehen, damit sie auf nachhaltige Weise nachhaltig zur Nachhaltigkeit beitragen können.
Klaus Kümmerer
wiley   +1 more source

Specific Ion Effects of Chaotropic and Superchaotropic Anions Probed by Raman Hydration‐Shell Spectroscopy

Angewandte Chemie, EarlyView.
The vibrational frequencies of “dangling” water O─H bonds can be determined by Raman hydration‐ shell spectroscopy and used to differentiate chaotropes from kosmotropes and hydrophobes. Dangling O─H bonds are also detected around superchaotropic anions of the borate cluster type (B12X122−; X = H, F, Cl, Br, and I) but their frequencies do not directly ...
Werner M. Nau, Denilson Mendes de Oliveira, Andres S. Urbina, Harald Knorke, Jonas Warneke, Andrea Barba‐Bon, Dor Ben‐Amotz   +6 more
wiley   +2 more sources

Carbonated mantle peridotites represent a hidden sink for subducted CO₂. [PDF]

Nat Commun
Carter EJ, O'Driscoll B, Burgess R, Clay PL, Balcone-Boissard H, Bürckel P, Oman Drilling Project Science Team.   +6 more
europepmc   +1 more source