Results 161 to 170 of about 27,451 (245)

Light‐Induced Anion Translocation to Control Helical Folding in an Artificial Communication System

Chemistry – A European Journal, EarlyView.
Anion‐induced helical folding of an oligomer is controlled indirectly and reversibly by light through anion uptake/release by a photoresponsive receptor. Thus, a light signal is processed into a chemical signal in a communication‐type three‐component supramolecular system.
Indigo M. Bekaert, Suchismita Saha, Julia Villalva, David Villarón, Maxime A. Siegler, Sander J. Wezenberg   +5 more
wiley   +1 more source

Computational study of the mechanism and selectivity of [3 + 2] cycloaddition reactions between nitrone and carbodiimide leading to the formation of anticancer 1,2,4-oxadiazolidine compounds from a MEDT perspective. [PDF]

Sci Rep
Mellaoui MD, Moussaoui M, Baammi S, Jmiai A, Benhida R, Issami SE, Zejli H, Daoud R.   +7 more
europepmc   +1 more source

Photolytic Hydrophosphination: Insights Into Catalyzed and Uncatalyzed Processes

Chemistry – A European Journal, EarlyView.
Catalyst‐free photolytic hydrophosphination is demonstrated for vinyl arenes and activated alkenes in polar protic (alcohol) solvents. These reactions appear to be closed‐shell, affirming that even ambient light can impact a reaction—a potentially broad influence on even mundane reactions.
Emma J. Finfer, Evelyn M. Kempf, Rory Waterman   +2 more
wiley   +1 more source

Regioselective [3 + 2] cycloaddition reactions of the phosphorus and arsenic analogues of the thiocyanate anion. [PDF]

Chem Sci
Baltrun M, Hanneberg D, Hett F, Seidl M, Weigend F, Hohloch S.   +5 more
europepmc   +1 more source

Total Syntheses of Agelamadin F and (±)‐Tauroacidin A, Enabled by NaClO2‐Mediated Coupling Reactions of Oroidin and Amines

Chemistry – A European Journal, EarlyView.
Total syntheses of agelamadin F and (±)‐tauroacidin A were achieved by sodium chlorite (NaClO2)‐mediated oxidative C─N coupling. Nine C15–N–amino acid‐substituted oroidin derivatives were successfully prepared to demonstrate the applicability and versatility of this oxidative coupling reaction.
Ryosuke Hirozumi, Yuta Kudo, Yuko Cho, Mari Yotsu‐Yamashita   +3 more
wiley   +1 more source

Collective asymmetric synthesis of the Strychnos alkaloids via thiophene S,S-dioxide cycloadditions. [PDF]

Nat Chem
Park KH', Park J, Frank N, Zhang H, Tian P, Biddick Y, Duarte F, Anderson EA.   +7 more
europepmc   +1 more source

Alkali‐Metal Base Catalyzed Electrocyclization of Isoprene Derivatives

Chemistry – A European Journal, EarlyView.
Simple and abundant alkali‐metal base catalysis in combination with Lewis basic polyamines enables the electrocyclization of isoprene‐derived trienes to cycloheptadienes under neat conditions. Mechanistic insight supported by DFT guides a scalable route to seven‐membered carbocycles which, after reduction, give saturated cycloalkanes relevant as ...
Mikaël Le Roch, Krzysztof Piech, Aurélien Crochet, Andreu Tortajada   +3 more
wiley   +1 more source

Safe by Design Flow Technology for Diazoacetonitrile Generation and Direct Conversion to Pyrazoles. [PDF]

ChemistryOpen
Bošković D, Loebbecke S, Piscopo CG, Radulescu LJ, Schwarzer M.   +4 more
europepmc   +1 more source

Dynamic Control of Nucleic Acids Self‐Assembly and Expression Using Photoswitches

Chemistry – A European Journal, EarlyView.
We review here the recent progress made in the design of molecular photoswitches, and highlight their implementation for the dynamic control over nucleic acids self‐assembly and expression. ABSTRACT Synthetic nucleic acids have become readily available and now constitute versatile building blocks in materials science—where they can be used to engineer ...
Noemí Nogal, Hugo Laigle, Maxime Mansy, Sébastien Ulrich, Mathieu Surin   +4 more
wiley   +1 more source

Strain Release of 1‐Azabicyclo[1.1.0]butanes as a Gateway to Highly Functionalized Azetidines: New Strategies and Structural Motifs

Chemistry – A European Journal, EarlyView.
Over the past decade, the interest in azetidines has continuously risen, by virtue of their highly appealing pharmaceutical properties. Monocyclic, spirocyclic, and bridged azetidines can be accessed by leveraging 1‐azabicyclo[1.1.0]butanes as precursors.
Yuri Gelato, Philipp Natho, Marco Colella, Renzo Luisi   +3 more
wiley   +1 more source