Results 91 to 100 of about 9,389 (255)

First Stereoselective Total Synthesis of (3)-De--methylbotryosphaeriodiplodin

Natural Product Communications, 2019
A simple and highly efficient first stereoselective total synthesis of a benzofused macrocyclic lactone, ( 3S,7R )-de- O -methylbotryosphaeriodiplodin has been accomplished utilizing Jacobson's kinetic resolution, Marouka asymmetric allylation, Stille ...
Jhillu S. Yadav, Chitteti Divya Vani, Mule Chowdeswari, K. Ananthalakshmi, N. Bhasker, Basi V. Subba Reddy   +5 more
doaj   +1 more source

Organic-Inorganic Hybrid Silica Material Derived from a Monosilylated Grubbs-Hoveyda Ruthenium Carbene as a Recyclable Metathesis Catalyst

Molecules, 2010
The synthesis of a monosilylated Grubbs-Hoveyda ruthenium alkylidene complex is described, as well as the preparation and characterization of the corresponding material by sol-gel cogelification with tetraethoxysilane (TEOS) and the assay of this ...
Michel Wong Chi Man, Ramón Alibés, Xavier Cattoën, Guadalupe Borja, Roser Pleixats   +4 more
doaj   +1 more source

Ring closing metathesis of phenyl-substituted dienes

, 1999
A series of phenyl-substituted heterodienes 2a-f and 6 was prepared and subjected to ring closing metathesis (RCM) to give differently phenyl- substituted dihydropyrroles and ...
Bujard, M, Mioskowski, C, Gouverneur, V, Gouverneur, Veronique, Briot, A   +4 more
core   +1 more source

Synthesis of a sucrose-based macrocycle with unsymmetrical monosaccharides "arms"

Beilstein Journal of Organic Chemistry, 2018
An efficient methodology for the selective substitution of both terminal positions (C6 and C6’) in 1’,2,3,3’,4,4’-hexa-O-benzylsucrose with different unsaturated monosaccharide units is presented.
Karolina Tiara, Mykhaylo A. Potopnyk, Sławomir Jarosz   +2 more
doaj   +1 more source

Biodegradable Grubbs-Loaded Artificial Organelles for Endosomal Ring-Closing Metathesis. [PDF]

Biomacromolecules, 2023
Oerlemans RAJF, Shao J, van Stevendaal MHME, Wu H, Patiño Padial T, Abdelmohsen LKEA, van Hest JCM.   +6 more
europepmc   +1 more source

Synthesis of the A-F Fragment of the Pacific Ciguatoxin CTX3C by Iterative Ring-Closing Metathesis and Tsuji-Trost Allylation. [PDF]

Chemistry, 2023
Triantafyllakis M, Alexander S, Woolford S, Wilson C, Clark JS.   +4 more
europepmc   +1 more source

Total Synthesis of (+)-Phomopsolide C by Ring-Size Selective Ring-Closing Metathesis/Cross-Metathesis

, 2016
A new strategy for the synthesis of chiral 6-substituted 5,6-dihydro-5-hydroxypyran-2-ones by ring-size selective ring-closing metathesis (RCM) and its application to a short total synthesis of (+)-phomopsolide C are described.
Simon Michaelis (2089381), Siegfried Blechert (2032447)   +1 more
core   +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

Effect of gem-difluorination on the conformation of selected hydrocarbon systems

, 2015
Owing to its unique electronic properties, the CF₂ group has the potential to affect the conformation and polarity of molecules. The Introduction provides an overview of the conformational effects induced by the incorporation of fluorine into ...
Skibiński, Maciej
core  

Development of a Method for the Preparation of Ruthenium Indenylidene-Ether Olefin Metathesis Catalysts

Molecules, 2012
The reactions between several derivatives of 1-(3,5-dimethoxyphenyl)-prop-2-yn-1-ol and different ruthenium starting materials [<em>i.e.</em>, RuCl₂(PPh₃)₃ and RuCl<sub ...
Yann Schrodi, Benjamin J. Gallon, Daniel R. Tolentino, Leonel R. Jimenez   +3 more
doaj   +1 more source