Results 61 to 70 of about 17,341 (257)
Beilstein Journal of Organic Chemistry, 2015 A silver-free methodology was developed for the synthesis of unprecedented N-heterocyclic carbene ruthenium indenylidene complexes bearing a bidentate picolinate ligand.
Thibault E. Schmid +6 more
doaj +1 more source
SynOpen, 2022 A concise and diastereoselective total synthesis of tetraketide and euscapholide is described in ten steps in 10.6% overall yield from acetaldehyde and (S)-pent-4-ene-1,2-diol.
Dhanraj O. Biradar +2 more
doaj +1 more source
First Enantioselective Synthesis of Tetracyclic Intermediates en route to Madangamine D [PDF]
, 2017 The enantioselective synthesis of advanced tetracyclic precursors of madangamine D, bearing rings ABCD of this alkaloid, is reported. The saturated 14-membered ring is assembled from functionalized diazatricyclic intermediates 10 following either ring ...
Amat Tusón, Mercedes +4 more
core +1 more source
Phase‐Pure and Size‐Tunable Tin Halide Perovskite Quantum Dots
Advanced Materials, EarlyView.A trioctylphosphine oxide modulated protocol allows for the synthesis and study of the optical properties of a broad library of tin halide perovskite quantum dots across multiple A‐ and X‐site compositions with precise size tuning while eliminating unwanted 2D phases.
Ole F. Dressler +7 more
wiley +1 more source
Profluorescent substrates for the screening of olefin metathesis catalysts
Beilstein Journal of Organic Chemistry, 2015 Herein we report on a 96-well plate assay based on the fluorescence resulting from the ring-closing metathesis of two profluorophoric substrates. To demonstrate the validity of the approach, four commercially available ruthenium-metathesis catalysts were
Raphael Reuter, Thomas R. Ward
doaj +1 more source
Structural and Pharmacological Effects of Ring-Closing Metathesis in Peptides
Molecules, 2010 Applications of ring-closing alkene metathesis (RCM) in acyclic α- and β-peptides and closely related systems are reviewed, with a special emphasis on the structural and pharmacological effects of cyclization by RCM.
Pål Rongved +2 more
doaj +1 more source
A Tandem Approach to Photoactivated Olefin Metathesis: Combining a Photoacid Generator with an Acid Activated Catalyst [PDF]
, 2009 Combining an acid activated precatalyst with a photoacid generator (PAG) in the presence of ultraviolet light resulted in a highly efficient catalyst for olefin metathesis.
Grubbs, Robert H., Keitz, Benjamin K.
core +1 more source
Synthesis of Model BC Bicycles of Taxol Using C10-C11 Ring-Closing Metathesis Strategy [PDF]
, 2006 6 pagesInternational audienceModel BC ring-systems of taxol 23b and 28b, which lack an oxygenated substituent at C7, have been efficiently synthesized.
Ma, Cong +3 more
core +3 more sources
Advanced Materials, EarlyView.We address the inherently weak particle adhesion of conventional air filters by coating a dynamically crosslinked adhesive layer that delivers capillarity‐driven strong adhesion and particle absorption mediated by dynamic bond exchange. The resulting enhancement in particle adhesion enables efficient ultrafast (up to 20 m s−1) and omnidirectional ...
Junyong Park +11 more
wiley +1 more source
Synthesis of Bioactive Macrocycles Involving Ring-Closing Metathesis Strategy
SynOpen, 2023 This review reports the synthesis of various bioactive macrocycles, involving ring-closing metathesis as a key step, developed since ca. 2000. These macrocycles exhibited biological activities such as antiviral, antifungal, antibacterial, and anticancer ...
Nasrin Jahan, Inul Ansary
doaj +1 more source