Results 101 to 110 of about 42,464 (282)
The synthesis of some new polymeric materials as potential additives for diesel fuel [PDF]
, 1993 Wax crystal formation in diesel and related hydrocarbon fuels during cold weather is a long standing problem. Current polymeric additives to diesel fuel modify the crystal habit of the wax, in a variety of ways, to improve its performance at low ...
Smith, Carole-Anne
core
Toward Metathesis Reactions on Vinylphosphaalkenes
, 2013 Attempts to utilize C-ethylenic phosphaalkenes in metathesis reactions are discussed. Unprecedented reactivity is observed where the vinylphosphaalkene undergoes the first step of the catalytic cycle and cross-metathesis with the phenylmethylene moiety ...
Ott, Sascha, +4 more
core +1 more source
Activation of Metal Complexes With Ultrasound Waves for Targeted Anticancer Therapy
Angewandte Chemie International Edition, EarlyView.Ultrasound enables non‐invasive activation of metal‐based therapeutics deep within tumors. Acoustic cavitation can drive sonodynamic reactive oxygen species generation or mechanochemical metal–ligand bond dissociation, enabling controlled release of bioactive payloads.
Félix Grosjean +3 more
wiley +1 more source
Selenopeptide Transamidation and Metathesis
Organic Letters, 2014 Abstract Selenopeptides can be transamidated by cysteinyl peptides in water using mild conditions (pH 5.5, 37 °C) in the presence of an arylthiol catalyst. Similar conditions also catalyze the metathesis of selenopeptides. The usefulness of the selenophosphine derived from TCEP (TCEP═Se) for inhibiting the TCEP-induced deselenization ...
Ollivier, Nathalie +5 more
openaire +3 more sources
Tandem Cyclopropanation/Ring-Closing Metathesis of Dienynes
, 2016 Certain dienynes give cyclorearrangement by tandem cyclopropanation/ring-closing alkene metathesis, triggered by either a ruthenium carbene or noncarbene ruthenium(II) precatalyst.
Steven T. Diver (1667287) +1 more
core +1 more source
, 2005 A convenient five step synthesis of (S)-homolysine, incorporating a key olefin cross-metathesis step in the chain extension methodology, has been developed, together with a six step related synthesis of a new homologue of arginine, (S ...
Paul Keller (19587565) +4 more
core
Metátese na linguagem infantil: “porfessora” é bom, “professora” é melhor
Saber & Educar, 2013 A leitura e a escrita são ensinadas a crianças cuja linguagem oral contém ainda, muitas vezes, desvios subtis. A metátese é um desses desvios, consistindo na troca da ordem de fonemas na palavra, tal como acontece em “corcodilo”.
Rosa M. Lima
doaj
‐octene and cyclic alkane metathesis
, 2020 Metallo-carbynes grafted on mesoporous fibrous silica are active towards alkane metathesis. We are comparing the activity of well-defined grafted pre-catalysts (≡Si-O-)W(≡CCMe3)(-CH2CMe3)2, (≡Si-O-)W(≡CH)(-CH3)2 and (≡Si-O-)Mo(≡CCMe3)(-CH2CMe3)2 for Ring
Manoja K. Samantaray +5 more
core +1 more source
Bulletin of the Korean Chemical Society, EarlyView.This review examines vitrimer performance from a broader perspective, considering not only dynamic covalent chemistry but also molecular structure, network architecture, and rheological behavior. These factors are discussed in relation to service and processing windows, reprocessing, repair, and engineering applications, providing a multiscale ...
Kyosun Ku, Hyeonuk Yeo
wiley +1 more source
Beilstein Journal of Organic Chemistry, 2013 Starting from the conveniently available ex-chiral pool building block (R,R)-hexa-1,5-diene-3,4-diol, the ten-membered ring lactones stagonolide E and curvulide A were synthesized using a bidirectional olefin-metathesis functionalization of the terminal ...
Bernd Schmidt, Oliver Kunz
doaj +1 more source