Results 81 to 90 of about 3,272,143 (363)

A Flexible Enantioselective Synthesis of the Isofurans. [PDF]

open access: yesChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Douglass F. Taber   +2 more
openaire   +4 more sources

Recent advances in the total synthesis of agelastatins [PDF]

open access: yes, 2010
Agelastatins represent an important family of marine alkaloids in terms of both exceptional biological activity and intriguing chemical structure.
Dong, Guangbin
core   +1 more source

Recent Advances in Heterogeneous Frustrated Lewis Pair: Synthesis, Characterization, and Catalysis

open access: yesAdvanced Materials, EarlyView.
This review provides a concise analysis of heterogeneous frustrated Lewis pair (FLP) chemistry, focusing on their synthesis, characterization, and application in small‐molecule activation. It highlights current challenges in developing solid FLP systems and explores promising advancements through emerging technologies, offering critical insights into ...
Jiasi Li   +2 more
wiley   +1 more source

Enantioselective Total Synthesis of Multifidene, a Sex Pheromone of Brown Algae

open access: yesOrganics, 2022
The total synthesis of multifidene, a sex pheromone found in brown algae, is described. The synthesis features the highly enantioselective and diastereoselective addition reaction of an aldehyde to a nitroolefin in the presence of a Hayashi–Jørgensen ...
Taiki Umezawa   +3 more
doaj   +1 more source

A Planar-Chiral Rhodium(III) Catalyst with a Sterically Demanding Cyclopentadienyl Ligand and Its Application in the Enantioselective Synthesis of Dihydroisoquinolones.

open access: yesAngewandte Chemie, 2018
The rapid development of enantioselective C-H activation reactions has created a demand for new types of catalysts. Herein, we report the synthesis of a novel planar-chiral rhodium catalyst [(C5 H2t Bu2 CH2t Bu)RhI2 ]2 in two steps from commercially ...
E. A. Trifonova   +5 more
semanticscholar   +1 more source

Spatial Coordination Structure‐Driven Enzyme‐Like Selectivity in Single‐Atom Nanozymes

open access: yesAdvanced Materials, EarlyView.
Sun et al. reviews recent progress in enhancing the enzyme‐like catalytic selectivity of SAzymes through the rational design of their spatial coordination structures. They emphasize the structure‐activity relationships of various attributes of these coordination structures in promoting selective catalytic behavior, the strategic design of coordination ...
Qijun Sun   +6 more
wiley   +1 more source

Catalytic Enantioselective Synthesis of Cyclobutenes from Alkynes and Alkenyl Derivatives.

open access: yesJournal of the American Chemical Society, 2019
Discovery of enantioselective catalytic reactions for the preparation of chiral compounds from readily available precursors, using scalable and environmentally benign chemistry, can greatly impact their design, synthesis and eventually manufacture on ...
Mahesh M Parsutkar   +2 more
semanticscholar   +1 more source

Enantioselective Synthesis of 5-epi-Citreoviral Using Ruthenium-Catalyzed Asymmetric Ring-Closing Metathesis [PDF]

open access: yes, 2009
Chiral ruthenium olefin metathesis catalysts can perform asymmetric ring-closing reactions in ≥90% ee with low catalyst loadings. To illustrate the practicality of these reactions and the products they form, an enantioselective total synthesis of 5-epi ...
Funk, Timothy W.
core   +2 more sources

Mode‐dependent Far‐field Radiation of Circularly Polarized Light by a Single Plasmonic Nanohelix

open access: yesAdvanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
The numerical simulations explored the chiroptical response and far‐field radiation behaviors of single plasmonic nanoantennas transitioning into helical structures. This study highlights the ability of these plasmonic nanohelices to regulate the far‐field directionality of radiation power and circular polarization in plasmon‐exciton coupled systems ...
Yiou Cui   +10 more
wiley   +1 more source

Stereodivergent, Diels-Alder-initiated organocascades employing α,β-unsaturated acylammonium salts: scope, mechanism, and application. [PDF]

open access: yes, 2017
Chiral α,β-unsaturated acylammonium salts are novel dienophiles enabling enantioselective Diels-Alder-lactonization (DAL) organocascades leading to cis- and trans-fused, bicyclic γ- and δ-lactones from readily prepared dienes, commodity acid chlorides ...
Abbasov, Mikail E   +3 more
core   +2 more sources

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