Results 21 to 30 of about 17,196 (162)

An Improved Scalable Process for the Synthesis of (S,S)-DACH-Ph Trost Ligand

Synlett : Accounts and Rapid Communications in Synthetic Organic Chemistry, 2022
An improved chemical process has been developed for the synthesis of (S,S)-DACH-Ph Trost ligand. The amidation of 2-diphenylphosphinylbenzoic acid and (S,S)-diaminocyclohexane is promoted by stoichiometric CDI and catalytic imidazole hydrochloride.

semanticscholar   +1 more source

Catalytic Enantioselective Synthesis of N-C Axially Chiral N-(2,6-Disubstituted-phenyl)sulfonamides through Chiral Pd-Catalyzed N-Allylation

Molecules, 2022
Recently, catalytic enantioselective syntheses of N-C axially chiral compounds have been reported by many groups. Most N-C axially chiral compounds prepared through a catalytic asymmetric reaction possess carboxamide or nitrogen-containing aromatic ...
Sota Fukasawa, Tatsuya Toyoda, Ryohei Kasahara, Chisato Nakamura, Yuuki Kikuchi, Akiko Hori, Gary J. Richards, Osamu Kitagawa   +7 more
doaj   +1 more source

Chiral, air stable, and reliable Pd(0) precatalysts applicable to asymmetric allylic alkylation chemistry

Nature Communications, 2023
Stereoselective carbon-carbon bond formation via palladium-catalyzed asymmetric allylic alkylation is a crucial strategy to access chiral natural products and active pharmaceutical ingredients.
Jingjun Huang, Thomas Keenan, François Richard, Jingru Lu, Sarah E. Jenny, Alexandre Jean, Stellios Arseniyadis, David C. Leitch   +7 more
doaj   +1 more source

Advanced Application of Planar Chiral Heterocyclic Ferrocenes

Inorganics, 2022
This manuscript is reviewing the superior catalytic activity and selectivity of ferrocene ligands in a wide range of reactions: reduction of ketones, hydrogenation of olefins, hydroboration, cycloaddition, enantioselective synthesis of biaryls, Tsuji ...
Alexandra A. Musikhina, Polina O. Serebrennikova, Olga N. Zabelina, Irina A. Utepova, Oleg N. Chupakhin   +4 more
doaj   +1 more source

Phosphonated Polyethylenimine Maghemite Nanoparticles: A Convenient Support of Palladium for Cross-Coupling Reactions

Organics, 2022
Phosphonated polyethylenimine grafted on iron oxide nanoparticles was used as a magnetic support for loading palladium. This cheap and accessible heterogeneous catalyst demonstrated good efficiency in Suzuki-Miyaura, Mizoroki-Heck, and Tsuji-Trost ...
Clément Monteil, Etienne Jean, Nathalie Bar, Didier Villemin   +3 more
doaj   +1 more source

A TCF-Based Carbon Monoxide NIR-Probe without the Interference of BSA and Its Application in Living Cells

Molecules, 2022
As toxic gaseous pollution, carbon monoxide (CO) plays an essential role in many pathological and physiological processes, well-known as the third gasotransmitter.
Yingxu Wu, Xiaojing Deng, Lan Ye, Wei Zhang, Hu Xu, Boyu Zhang   +5 more
doaj   +1 more source

catena-Poly[[[bis(N,N-dimethylformamide)iron(II)]-{μ-2,2′-bis(diphenylphosphinoyl)-N,N′-[(1R,2R)-cyclohexane-1,2-diyl]dibenzamide}] bis(perchlorate) N,N-dimethylformamide disolvate]

Acta Crystallographica Section E, 2009
The title extended solid coordination compound, {[Fe(C44H40N2O4P2)(C3H7NO)2](ClO4)2·2C3H7NO}n, was crystallized unexpectedly from the reaction mixture containing the Trost ligand (1R,2R)-(+)-1,2-diaminocyclohexane-N,N′-bis(2′-
Christopher J. A. Daley, Arnold L. Rheingold, Curtis Moore, Grant R. Ferrell   +3 more
doaj   +1 more source

Æstetikkens trøst

Tidsskrift for Omsorgsforskning
Dette videnskabelige essay tager afsæt i et fænomenologisk og dialogisk aktionsforskningsprojekt på Sct. Maria Hospice og Afdeling for Åbne Indlæggelser på Sygehus Lillebælt i Danmark. Formålet med projektet er at undersøge, hvad der kan virke trøstende,
Sine Maria Herholdt-Lomholdt
doaj   +1 more source

Association Between Healthy Lifestyle Behaviors and Mental Health Symptoms in Children With Autism and ADHD: A Latent Profile Analysis

Autism Research, EarlyView.
ABSTRACT Healthy lifestyle behaviors, including physical activity, screen time, sleep, and diet quality, are important determinants of mental health, yet little is known about how these behaviors cluster among children with neurodevelopmental disorders.
Matthew Bourke, Jacqueline L. Walker, George Thomas, Kathryn Fortnum, Martin O'Flaherty   +4 more
wiley   +1 more source

Hidden O‐Deglycosylation Activity Triggers O → C Rearrangement for Aryl Di‐C‐Glucoside Formation by the C‐Glycosyltransferase From Fortunella crassifolia

Biotechnology and Bioengineering, EarlyView.
Here, we uncovered an unexpected O‐deglycosylation activity of the C glycosyltransferase (FcCGT), forming phloretin (1) from phloretin 2'‐O‐glucoside (2). In the presence of UDP, FcCGT catalyzes the O→C rearrangement to yield nothofagin (3). Upon additional UDP‐glucose, further C‐glycosylation occurs, forming phloretin 3',5'‐di‐C‐glucoside (4 ...
Tuo Li, Annika J. E. Borg, Leo Krammer, Rolf Breinbauer, Bernd Nidetzky   +4 more
wiley   +1 more source