Results 131 to 140 of about 4,618,245 (281)

Enantioselective Total Synthesis of (–)-Myrifabral A and B [PDF]

, 2020
A catalytic enantioselective approach to the Myrioneuron alkaloids (−)-myrifabral A and (−)-myrifabral B is described. The synthesis was enabled by a palladium-catalyzed enantioselective allylic alkylation, that generates the C(10) all-carbon quaternary ...
Bartberger, Michael D., Chen, Anthony Y., Fulton, Tyler J., Stoltz, Brian M.   +3 more
core  

Latent olefin metathesis catalysts [PDF]

, 2009
Olefin metathesis is a versatile synthetic tool for the redistribution of alkylidene fragments at carbon-carbon double bonds. This field, and more specifically the development of task-specific, latent catalysts, attracts emerging industrial and academic ...
Drozdzak, Renata, Lozano Vila, Ana, Monsaert, Stijn, Van Der Voort, Pascal, Verpoort, Francis   +4 more
core   +2 more sources

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

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

Rational Design and Development of Organic Afterglow Nanoparticles for Image‐Guided Interventions

Small Methods, EarlyView.
This review outlines the rational design, synthesis, and standardized characterization of organic afterglow nanoparticles for biomedical imaging and therapy. Mechanistic insights into chemically initiated electron exchange luminescence and reactive oxygen species‐mediated processes are connected to molecular engineering and nanoparticle fabrication ...
Asma Harun, Isabella Vasquez, Hannah Bowman, Robert Posey, Zhongkui Hong, Joshua Tropp, Indrajit Srivastava   +6 more
wiley   +1 more source

Olefin cross metathesis based de novo synthesis of a partially protected L-amicetose and a fully protected L-cinerulose derivative

Beilstein Journal of Organic Chemistry, 2014
Cross metathesis of a lactate derived allylic alcohol and acrolein is the entry point to a de novo synthesis of 4-benzoate protected L-amicetose and a cinerulose derivative protected at C5 and C1.
Bernd Schmidt, Sylvia Hauke
doaj   +1 more source

Concise Syntheses of Δ^(12)-Prostaglandin J Natural Products via Stereoretentive Metathesis [PDF]

, 2019
Δ^(12)-Prostaglandin J family is recently discovered and has potent anticancer activity. Concise syntheses of four Δ^(12)-prostaglandin J natural products (7–8 steps in the longest linear sequences) are reported, enabled by convergent stereoretentive ...
Ahmed, Tonia S., Grubbs, Robert H., Li, Jiaming, Stoltz, Brian M., Xu, Chen   +4 more
core   +1 more source

Dimethyl‐, Diethyl‐, and Propylene Carbonates: An Emerging Class of Green Solvents for Organic Synthesis

The Chemical Record, EarlyView.
This review highlights recent advances in the use of organic carbonates, dimethyl carbonate (DMC), diethyl carbonate (DEC), and propylene carbonate (PC), as solvents in organic synthesis. Based on over seventy studies from the past 6 years, it shows their application in different organic reaction types, emphasizing their role in safer and more ...
Gabriela T. Quadros, Livia C. L. Valente, Thiago Barcellos, Daniela Hartwig, Laura Abenante, Eder J. Lenardão   +5 more
wiley   +1 more source