Results 141 to 150 of about 173,009 (382)

Mechanisms for the Oxonolysis of Ethene and Propene: Reliability of Quantum Chemical Predictions [PDF]

, 2003
Reactions of ozone with ethene and propene leading to primary ozonide (concerted and stepwise ozonolysis) or epoxide and singlet molecular oxygen (partial ozonolysis) are studied theoretically.
Chan, Wai-To, Hamilton, Ian P.
core   +1 more source

New Addition Reactions. II. Addition of Aliphatic Epoxides to Schiff Bases [PDF]

, 1962
Ryohei Oda, Masaya Okano, Shohei Tokiura, Akira Miyasu   +3 more
openalex   +1 more source

Synthesis of Crosslinked Biopolyesters Catalyzed by Natural Amino Acids

Asian Journal of Organic Chemistry, EarlyView.
Highly crosslinked bio‐polyesters were synthesized via the ROCOP reaction between epoxidized sunflower oil and biobased cyclic anhydrides. The resulting materials were comprehensively characterized by FT‐IR, TGA, and DSC. A cross‐linked network in the bio‐based polymers has been confirmed by dynamic mechanical analysis.
Enrique Francés‐Poveda, Abigail Montiel, Oscar A. Douglas‐Gallardo, Carmen Moya‐López, Genesys L. Mahecha, Mario E. Flores, Felipe de la Cruz‐Martínez, Francisca Werlinger, Javier Martínez, Agustín Lara‐Sánchez   +9 more
wiley   +1 more source

Rapid Synthesis and Diversification of Thymine‐Containing Bridged Nucleic Acids Through Cascade Cyclization Reactions

Angewandte Chemie, EarlyView.
Several processes are reported that enable the rapid diversification of bridged nucleoside analogues (NAs) starting from a common and readily prepared fluorohydrin. Also, several clinically relevant bridged nucleosides are now prepared in as few as three synthetic steps, creating new opportunities for examining structure‐activity relationships within ...
Cohan Huxley, Ethan Fung, Bara Singh, Guillermo Caballero‐García, Garrett Muir, Steven M. Silverman, Louis‐Charles Campeau, Robert Britton   +7 more
wiley   +2 more sources

ON THE PECULIARITIES OF THE RING CONTRACTION REACTIONS OF HOMODRIMANES VIA ACID MEDIATED EPOXIDE REARRANGEMENT [PDF]

Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2011
A selective rearrangement of a epoxy-homodrimanic substrate is described. Using fluorosulfonic acid at low temperature leads by ring contraction to a perhydrindanic structure. On the contrary, using boron trifluoride-diethyl ether at r.t.
Veaceslav Kulciţki, Tatiana Sîrbu, Nicon Ungur   +2 more
doaj  

Recent progress in the synthesis of six-membered aminocyclitols (2008-2017) [PDF]

, 2018
Aminocyclitols are of interest as glucosidase inhibitors, as probes for the study of pseudoglycosyltransferases, and as potential therapeutics for the treatment of Gaucher’s disease.
Donaldson, William
core   +1 more source

A Straightforward Access to Enantiopure 4‐Hydroxy‐pipecolic Acid Peptidomimetics by aza‐Prins Cyclization/LiNTf2‐Promoted Aminolysis of Lactones

Asian Journal of Organic Chemistry, EarlyView.
Enantiopure constrained pseudodipeptides based on pipecolic acid scaffold are obtained by a two‐step synthesis involving an aza‐Prins cyclization to deliver piperidine‐lactones, followed by LiNTf2‐promoted aminolysis with various amino acids. Abstract Peptidomimetics, that can take advantage of bioavailability and metabolic stability, are considered as
Vianney Durel, Myriam Le Roch, Jacques Renault, Vincent Dorcet, Thierry Roisnel, Nicolas Gouault, Gilles Argouarch, Claudia Lalli   +7 more
wiley   +1 more source

Is a Malleable Active Site Loop the Key to High Substrate Promiscuity? Hybrid, Biocatalytic Route to Structurally Diverse Taxoid Side Chains with Remarkable Dual Stereocontrol

Angewandte Chemie, EarlyView.
A highly stereoselective, dynamic reductive kinetic resolution (DYRKR) entry into myriad Taxotere‐like side chains with Clostridium acetobutylicum alcohol dehydrogenase (CaADH) enzyme is reported. Follow‐on cross couplings expand the structural diversity of the library (36 total examples).
Gaurav P. Kudalkar, Florian Leidner, Nivesh Kumar, Jared L. Hass, Peter Madzelan, Douglas R. Powell, Victor W. Day, Pierre Le Magueres, Joseph D. Ferrara, Lee M. Daniels, Akihito Yamano, Sho Ito, Wei Niu, Helmut Grubmüller, Mark A. Wilson, David B. Berkowitz   +15 more
wiley   +2 more sources

Computational design for enantioselective CO2 capture: asymmetric frustrated Lewis pairs in epoxide transformations

Beilstein Journal of Organic Chemistry
Carbon capture and utilisation (CCU) technologies offer a compelling strategy to mitigate rising atmospheric carbon dioxide levels. Despite extensive research on the CO2 insertion into epoxides to form cyclic carbonates, the stereochemical implications ...
Maxime Ferrer, Iñigo Iribarren, Tim Renningholtz, Ibon Alkorta, Cristina Trujillo   +4 more
doaj   +1 more source

Nanoparticles Functionalized with Polymer Brushes for Gene Delivery

Advanced NanoBiomed Research, EarlyView.
The engineering of the next generation gene delivery vectors requires the precise control of the architecture and physicochemical interactions controlling the transport, targeting, uptake, and release of nucleic acid materials to targeted cells. Polymer brush‐functionalized nanomaterials offer unprecedented control over such design and properties, and ...
Carlos E. Neri‐Cruz, Julien E. Gautrot
wiley   +1 more source