Results 131 to 140 of about 9,389 (255)

Ring-Closing Alkyne Metathesis. Application to the Total Synthesis of Sophorolipid Lactone

open access: yes, 2016
The first total synthesis of a major component of the microbial biosurfactant sophorolipid has been achieved. This approach to the 26-membered macrolide 1 containing a Z-configured alkene group in its lipidic tether spanning the sophorose backbone is ...
Karin Radkowski (1610737)   +4 more
core   +1 more source

Structure Elucidation and Total Synthesis of Granolides A–C: Ethyl‐branched Sesquiterpenes From the Tropical Frog Gephyromantis granulatus

open access: yesChemistry – A European Journal, EarlyView.
Males of the tropical frog Gephyromantis granulatus carry unique ethyl‐branched sesquiterpenoid macrolactones in their scent glands. Their structure elucidation was performed by GC/MS, leading to the proposed structures of the granolides. A flexible enantioselective synthesis confirmed the structures and allowed determination of their absolute ...
Johanna Kuhn   +2 more
wiley   +1 more source

Catalytic Generation of Cationic Gold Carbene Complexes From 7‐Alkynylnorbornadienes and Their Intermolecular Cyclopropanation With Alkenes

open access: yesChemistry – A European Journal, EarlyView.
Efficient cationic gold(I)‐catalyzed intermolecular cyclopropanation of 7‐alkynylnorbornadiene derivatives has been developed. This methodology offers the synthesis of a new class of norbornene derivatives in high yield with excellent diastereoselectivity.
Kento Ishida   +3 more
wiley   +1 more source

Azidophosphonamido Rhodium(I) and Iridium(I) Complexes: Synthesis, Properties, and Linkage Isomerism

open access: yesChemistry – A European Journal, EarlyView.
A family of azidophosphonamido ligands and their corresponding rhodium(I) and iridium(I) complexes were synthesized. The rich reaction chemistry of these species revealed unusual linkage isomerization processes and bonding motifs. M = Rh, Ir; Mes = 2,4,6‐Me3C6H2. ABSTRACT A series of azidophosphonamido rhodium(I) and iridium(I) complexes ([iPr2P(N3R)NR]
Emily L. Trew   +3 more
wiley   +1 more source

Hydrosilane Chemistry: From Historic First Steps to Modern Applications

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
This review covers the history of hydrosilanes, from their initial discovery to their modern applications. It highlights the pioneering work of chemists like Alfred Stock and Franz Fehér and discusses the modern ways of synthesis and use of hydrosilanes in printed electronics.
Uwe Böhme, Maik Gerwig
wiley   +1 more source

Ring-closing metathesis of prochiral oxaenediynes to racemic 4-alkenyl-2-alkynyl-3,6-dihydro-2H-pyrans. [PDF]

open access: yesBeilstein J Org Chem, 2020
Kolaříková V   +3 more
europepmc   +1 more source

A Hoveyda–Grubbs‐Type Olefin Metathesis Catalyst Bearing a Fluorinated Unsymmetrical NHC Ligand

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
A fluorinated unsymmetrical NHC ruthenium complex was synthesised and employed as a catalyst for olefin metathesis reactions. The modification of the steric and electronic properties of the NHC ligand through the introduction of fluorine substituents results in improved activity but lower selectivity compared to the analogous non‐fluorinated NHC ...
Rubina Troiano   +3 more
wiley   +1 more source

Main Group Metals in Redox Catalysis

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
Main group metal redox catalysis is emerging as a credible alternative to transition metal chemistry. Elements from groups 13 to 15 now enable diverse catalytic manifolds, driven by ligand design and control of electronic structure. This review highlights recent advances, key design principles, and remaining challenges, positioning main group metals as
Olympia Mouriki   +2 more
wiley   +1 more source

Homogeneous and Functional Group Tolerant Ring-Closing Metathesis for DNA-Encoded Chemical Libraries. [PDF]

open access: yesACS Comb Sci, 2020
Monty OBC   +6 more
europepmc   +1 more source

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