Results 71 to 80 of about 27,606 (220)

NiH‐Catalyzed Enantioconvergent α‐Alkenylation of Carbonyl Compounds via Markovnikov Alkyne Hydronickellation

open access: yesAngewandte Chemie, EarlyView.
A NiH‐catalyzed α‐alkenylation via Markovnikov hydronickellation of alkynes enables convenient access to α‐chrial β‐methylene carbonyl frameworks that are prevalent in biorelevant molecules. High regio‐ and enantioselectivities have been achieved with excellent functional group tolerance and applicability toward complex structures. The β‐methylene unit
Hyeontaek Nam   +3 more
wiley   +2 more sources

Bayesian Optimisation for the Experimental Sciences: A Practical Guide to Data‐Efficient Optimisation of Laboratory Workflows

open access: yesAdvanced Intelligent Systems, EarlyView.
This study provides an introduction to Bayesian optimisation targeted for experimentalists. It explains core concepts, surrogate modelling, and acquisition strategies, and addresses common real‐world challenges such as noise, constraints, mixed variables, scalability, and automation.
Chuan He   +2 more
wiley   +1 more source

Rh‐Catalyzed Chemodivergent Parallel Kinetic Resolution and Desymmetrization of Enynes and Dienynes with Acrylamides

open access: yesAngewandte Chemie, EarlyView.
Rh‐catalyzed chemodivergent parallel kinetic resolution of racemic 1,6‐enynes with α‐fluoroacrylamides or mixtures of different acrylamides proceeded via [2+2+2] cycloaddition and C–H alkylation to afford structurally and stereochemically distinct products with high selectivity under mild conditions.
Shintaro Hamada   +5 more
wiley   +2 more sources

Decoding the Pathophysiology of Autoimmune Diseases—Mechanism, Triggers, and Nanotherapeutics: A Review

open access: yesAdvanced NanoBiomed Research, EarlyView.
This review highlights how autoimmune diseases arise from intertwined immunological, genetic, and environmental factors, emphasizing gut microbiota dysbiosis as a pivotal driver. It outlines emerging nanotechnology‐based strategies—such as liposomes, hydrogels, and polymeric nanoparticles—that enhance targeted drug delivery, minimize systemic toxicity,
Md. Meraj Ansari   +5 more
wiley   +1 more source

Copper(II)-Catalyzed Direct C3 Chalcogenylation of Indoles

open access: yesMolecules
3-Chalcogenylindoles serve as crucial building blocks in organic synthesis and pharmaceutical chemistry. Herein, we describe a simple and general synthesis of 3-chalcogenylindoles through the direct C–H chalcogenation of indoles using N-selenophthalimide
Liuyan Pan   +5 more
doaj   +1 more source

Deproto-metallation of N-arylated pyrroles and indoles using a mixed lithium–zinc base and regioselectivity-computed CH acidity relationship

open access: yesBeilstein Journal of Organic Chemistry, 2015
The synthesis of N-arylated pyrroles and indoles is documented, as well as their functionalization by deprotonative metallation using the base in situ prepared from LiTMP and ZnCl2·TMEDA (1/3 equiv).
Mohamed Yacine Ameur Messaoud   +12 more
doaj   +1 more source

Aminofluorination of 2-alkynylanilines: a Au-catalyzed entry to fluorinated indoles

open access: yesBeilstein Journal of Organic Chemistry, 2014
The scope and limitations of gold-catalyzed tandem cycloisomerization/fluorination reactions of unprotected 2-alkynylanilines to have access to 3,3-difluoro-2-aryl-3H-indoles and 3-fluoro-2-arylindoles are described.
Antonio Arcadi   +3 more
doaj   +1 more source

Allenylphosphine oxides as simple scaffolds for phosphinoylindoles and phosphinoylisocoumarins

open access: yesBeilstein Journal of Organic Chemistry, 2014
A range of phosphinoylindoles was prepared in one-pot from functionalized propargyl alcohols and a suitable P(III) precursor via a base-mediated reaction. The reaction proceeds via the intermediacy of allenylphosphine oxides.
G. Gangadhararao   +3 more
doaj   +1 more source

Bacterial Production of Indole Related Compounds Reveals Their Role in Association Between Duckweeds and Endophytes

open access: yesFrontiers in Chemistry, 2018
Duckweed farming can be a sustainable practice for biofuel production, animal feed supplement, and wastewater treatment, although large scale production remains a challenge.
Sarah Gilbert   +5 more
doaj   +1 more source

Antiedematogenic activity of the indole derivative N-salicyloyltryptamine in animal models

open access: yesAnais da Academia Brasileira de Ciências
The N-salicyloyltryptamine (NST) is an indole derivative compound analogue to the alkaloid N-benzoyltryptamine. In the present study, the antiedematogenic activity of NST was investigated in animal models. Firstly, the acute toxicity for NST was assessed
BENEDITO P. SOUSA-NETO   +7 more
doaj   +1 more source

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