Results 171 to 180 of about 48,033 (274)

Photostability of Cyanine Dyes and Its Correlation to Their Photothermal and Photodynamic Effects

Chemistry – A European Journal, EarlyView.
Photostability (PS) of dyes is a crucial parameter for performance in biological applications, yet often underrated. Here PS of several cyanines is investigated. The method is carefully evaluated and designed as a general and easy tool to compare PS of NIR dyes.
Clara Schäfer, Bo W. Laursen
wiley   +1 more source

Iron-Catalyzed Friedel-Crafts Reactions of Unactivated 3-Aryl-Oxetanols Exploiting HFIP Stabilization of Carbocations. [PDF]

J Org Chem
Dubois MAJ, Begg CS, Ma TK, Rojas JJ, White AJP, Choi C, Bull JA.   +6 more
europepmc   +1 more source

Uncatalyzed Guanosine Phosphorylation under Potentially Prebiotic Conditions

Chemistry – A European Journal, EarlyView.
Pyrophosphate acts as phosphorylating agent of guanosine under simple wet‐dry cycles without condensing agent and inorganic catalysts to afford cyclic guanosine monophosphate derivatives useful for oligomerization in prebiotic processes. ABSTRACT The phosphorylation of nucleosides and their subsequent polymerization are key issues in the study of the ...
Martina Proietti, Bruno Mattia Bizzarri, Elisa De Marchi, Alessandra Giorgi, Raffaele Saladino, Giovanna Costanzo   +5 more
wiley   +1 more source

Probing Catalytic Residues Responsible for Primer Substrate Reactivity in a Versatile <i>cis</i>-Geranylgeranyl Diphosphate Synthase. [PDF]

ACS Omega
Lin CC, Cheng ML, Chang TH, Ma LT.
europepmc   +1 more source

Bond Formation: Shaken, Not Stirred

Chemistry – A European Journal, EarlyView.
Shaking of seismo‐molecules efficiently transforms kinetic energy into storable chemical potential, unlocking high‐utility Gibbs free energy. This innovative mechanism pioneers uncharted scientific frontiers, introducing fascinating phenomena like seismochemistry, seismochromism, and seismofluorescence that redefine the boundaries of molecular ...
Alexander D. Q. Li
wiley   +1 more source

Three Component Thio- and Carboboration of Alkynes: A Modular Route to Functionalised Bicyclic Boronates. [PDF]

Angew Chem Int Ed Engl
Winfrey L, Nichol GS, Thomas SP, Willcox DR, Ingleson MJ.   +4 more
europepmc   +1 more source

C‐Terminal Functionalization Methods of Amino Acids, Peptides, and Proteins

Chemistry – A European Journal, EarlyView.
C‐terminal functionalization offers powerful routes to peptide and protein diversification, yet epimerization, hydrolysis, and selectivity remain key challenges. This Review surveys enzymatic, decarboxylative, and condensation strategies, highlighting advances toward chemo‐ and regioselective, protecting‐group‐free, atom‐efficient methods applicable to
Jay Hanssens, Mark Lambers, Romano V. A. Orru, Jordy M. Saya   +3 more
wiley   +1 more source

Anions as catalysts: from organosilanes as pro-nucleophiles to base-embedding electrophiles.

Chem Soc Rev
Kejani AA, Larroza A, Torres-Hernandez AX, Paioti PHS.   +3 more
europepmc   +1 more source

Green, one-pot strategy for substitution of the 5-position of 1,10-phenanthrolines. [PDF]

RSC Adv
Wheeler JP, Espinoza EM, Sharma K, Durand N, Castellano FN.   +4 more
europepmc   +1 more source

Alkyne‐Assisted Stereospecific Skeletal Rearrangement via Nonclassical Carbocations

Chemistry – A European Journal, EarlyView.
We report stereospecific nucleophilic substitution of homopropargylic alcohols enabled by alkyne anchimeric assistance. Alcohol activation triggers formation of a nonclassical cyclopropylidenemethyl cation, allowing efficient chirality transfer to densely substituted tertiary homopropargyl fluorides.
Rajan Kumar Kharwar, Kaushalendra Patel, Noam Orbach, Ilan Marek   +3 more
wiley   +1 more source