Results 111 to 120 of about 26,308 (247)

A Convenient, Safe, and Atom-Economical Route to a Large Portfolio of Grubbs-Type Catalysts for Olefin Metathesis via Four-Coordinate Ruthenium Alkylidynes. [PDF]

Angew Chem Int Ed Engl
It may seem counterintuitive to first target a ruthenium alkylidyne when Grubbs‐type ruthenium carbene complexes are the actual goal. In the end, however, this tactic pays valuable dividends in terms of practicality, atom economy, flexibility as well as safety: the new route provides ready access to a large assortment of catalysts for alkene metathesis
Cui M, Fürstner A.
europepmc   +3 more sources

Thermally Stable, Latent Olefin Metathesis Catalysts [PDF]

, 2011
Highly thermally stable N-aryl, N-alkyl N-heterocyclic carbene (NHC) ruthenium catalysts were designed and synthesized for latent olefin metathesis. These catalysts showed excellent latent behavior toward metathesis reactions, whereby the complexes were ...
Fedorov, Alexey, Grubbs, Robert H., Keitz, Benjamin K., Thomas, Renee M.   +3 more
core   +3 more sources

Kinetics of anionic polymerization of β‐myrcene in hydrocarbon solvents

Polymer International, EarlyView.
The process of anionic polymerization of β‐myrcene in hydrocarbon solvents was examined by kinetic studies and quantum chemical calculations. Abstract The kinetics of anionic polymerization of β‐myrcene initiated by sec‐butyllithium were examined in saturated and unsaturated hydrocarbon solvents, i.e. cyclohexane, cyclohexene, 4‐vinylcyclohexene and dl‐
Alexander Rösler, Steffen M Weidner, Tillmann Klamroth, Axel HE Müller, Helmut Schlaad   +4 more
wiley   +1 more source

Bidirectional cross metathesis and ring-closing metathesis/ring opening of a C2-symmetric building block: a strategy for the synthesis of decanolide natural products

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

Z-Trisubstituted α,β-Unsaturated Esters and Acid Fluorides through Stereocontrolled Catalytic Cross-Metathesis. [PDF]

J Am Chem Soc, 2023
Qin C, Koengeter T, Zhao F, Mu Y, Liu F, Houk KN, Hoveyda AH.   +6 more
europepmc   +1 more source

Living Coordination (Co)Polymerization of Norbornene Derivatives by Using Nickel Catalysts Derived From Bis(1,5‐Cyclooctadiene)nickel(0) and 2,6‐Dihydroxybenzoic Acid

Journal of Polymer Science, EarlyView.
The living coordination polymerization of norbornene is achieved using a nickel catalyst derived from Ni(cod)2 and 2,6‐dihydroxybenzoic acid with trityl borate as cocatalyst to produce poly(norbornene) with controllable molecular weights and narrow polydispersity.
Taidong Yao, Shunsuke Kochi, Tomoki Saito, Ryoyu Hifumi, Shinsuke Inagi, Ikuyoshi Tomita   +5 more
wiley   +1 more source

Synergism between hierarchical MFI zeolites and alumina in alkene cross-metathesis reactions as a function of composition. [PDF]

RSC Adv, 2023
Wei N, Zhang W, Zhang D, Huang S.
europepmc   +1 more source

Elongation of β-hydroxyenones by cross-metathesis

Tetrahedron Letters, 2005
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Silva, F, Gouverneur, V
openaire   +1 more source

University teaching of mass spectrometry as a key practical technique within the context of a fully integrated, spiral curriculum

Rapid Communications in Mass Spectrometry, EarlyView.
Rationale Mass spectrometry (MS) is introduced to high school students in the UK in many pre‐university course syllabi. As such, we have identified the use of MS as a key technique that should be taught practically to undergraduates from the outset of their studies.
Andrew F. Worrall, Craig D. Campbell, Megan O. Midson, Malcolm I. Stewart   +3 more
wiley   +1 more source

Catalytic Cross-Metathesis Reactions That Afford E- and Z-Trisubstituted Alkenyl Bromides: Scope, Applications, and Mechanistic Insights. [PDF]

J Am Chem Soc, 2023
Koengeter T, Qin C, Mai BK, Liu Q, Mu Y, Liu P, Hoveyda AH.   +6 more
europepmc   +1 more source