Results 71 to 80 of about 1,542 (208)

Visible‐Light Enabled Synthesis of 1‐Aryl‐3‐Sulfonylmethyl‐1,2,4‐Triazoles by Arylazo Sulfones

open access: yesAdvanced Synthesis &Catalysis, Volume 367, Issue 6, March 18, 2025.
Abstract We present a novel and highly efficient method for synthesizing polyfunctionalized 1,2,4‐triazoles. This approach leverages visible light and arylazo sulfones in combination with N‐vinyl amides, in the environmentally friendly solvent ethyl acetate.
Luca Nicchio   +5 more
wiley   +1 more source

Marine pharmacology in 2009-2011: marine compounds with antibacterial, antidiabetic, antifungal, anti-inflammatory, antiprotozoal, antituberculosis, and antiviral activities; affecting the immune and nervous systems, and other miscellaneous mechanisms of action. [PDF]

open access: yes, 2013
The peer-reviewed marine pharmacology literature from 2009 to 2011 is presented in this review, following the format used in the 1998–2008 reviews of this series.
A. D. Rodriguez   +3 more
core   +2 more sources

Research Experience for Undergraduates Program, 2010 [PDF]

open access: yes, 2010
Supported by the National Science ...
University of Arkansas, Fayetteville. Dept. of Chemistry and Biochemistry
core   +3 more sources

1,3-Dipolar Cycloaddition of Isatin-Derived Azomethine Ylides with 2H‐Azirines: Stereoselective Synthesis of 1,3- Diazaspiro[bicyclo[3.1.0]hexane]oxindoles [PDF]

open access: yes, 2019
A regio- and diastereoselective 1,3-dipolar cycloaddition of 2H-azirines with azomethine ylides generated in situ from isatins and α-amino acids has been elaborated, affording an unprecedented aziridine-fused spiro[imidazolidine-4,3′-oxindole] framework.
Angyal, Anikó   +5 more
core   +4 more sources

Manganese(I)-Catalyzed Highly Enantioselective Synthesis of Aziridine Phosphines [PDF]

open access: yes
Herein, we present the first catalytic asymmetric nucleophilic addition of diarylphosphines to 2H-azirines, facilitated by a chiral Mn(I) complex. This method not only provides access to novel class of derivatives of the aziridine core-a structural motif
Castiñeira Reis, Marta   +3 more
core   +1 more source

Enumeration of saturated and unsaturated substituted N-heterocycles

open access: yes, 2023
Mathematical and computational approaches in chemistry and biochemistry fill a gap in respect to the analysis of the physicochemical features of compounds and their functionality and provide an overview of known as well as yet unknown, but hypothetically
Malycheva, Tatjana, Schuster, Stefan
core  

Highly Enantioselective Reductions of 2H-Azirines

open access: yes
Herein, we present the first highly enantioselective reduction of mono- and tri- substituted 2H-azirines mediated by a chiral copper-hydride complex. The reaction tolerates both alkylated and arylated 2H-azirines to afford free N-H aziridines in excellent yield (up to 96%) and enantioselectivity (up to 96% ee). A key finding was the stark difference in
Yinuo Zheng   +4 more
openaire   +1 more source

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