Reversible conformational switching of a photo-responsive ortho-azobenzene/2,6-pyridyldicarboxamide heterofoldamer

Org. Biomol. Chem., 2023, 21,7717-7723
DOI: 10.1039/D3OB01137B, Paper
Open Access Open Access
Creative Commons Licence  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Sarah J. Pike, Richard Telford, Louise Male
A versatile and short synthetic route to access a photo-responsive foldamer has been established. The robustness of the reversible conformational switching of the foldamer has been determined using UV/Vis, 1H NMR and circular dichroism spectroscopy.
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A facile synthesis of phthalimides from o-phthalaldehyde and amines via tandem cyclocondensation and α-C–H oxidation by an electrochemical oxygen reduction reaction

Org. Biomol. Chem., 2023, 21,7707-7711
DOI: 10.1039/D3OB01031G, Communication
Nalladhambi Neerathilingam, Sakthivel Prabhu, Ramasamy Anandhan
A facile electrochemical synthesis of phthalimides from o-phthalaldehyde and amines was achieved via tandem cyclocondensation and α-C–H oxygenation under mild conditions.
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Copper(II)-catalyzed cascade Csp2–P/C–C bond formation to construct benzo[d]thiazol-2-ylphosphonates

Org. Biomol. Chem., 2023, 21,7696-7701
DOI: 10.1039/D3OB01256E, Communication
Han Wang, Le Huang, Jun Li, Wenyan Hao
An efficient method for the synthesis of benzo[d]thiazol-2-ylphosphonates via the copper(II)-catalyzed tandem bicyclization of o-halophenyl isothiocyanates and organophosphorus esters.
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Dual gold-catalyzed regioselective synthesis of benzofulvenes via 5-endo dig cyclization

Org. Biomol. Chem., 2023, 21,7799-7807
DOI: 10.1039/D3OB01079A, Paper
Gottam Sreenivasulu, Balasubramanian Sridhar, Galla V. Karunakar
Gold-catalyzed regioselective synthesis of benzofulvenes has been developed from substituted allyloxy 1,5-diynes via 5-endo dig cyclization.
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Divergent transformation of C,N-cyclic-N′-acyl azomethine imines by reaction with diazo compounds

Org. Biomol. Chem., 2023, 21,7891-7894
DOI: 10.1039/D3OB01165H, Communication
Haruki Ohno, Ryosuke Takahashi, Takuya Suga, Takahiro Soeta, Yutaka Ukaji
Divergent transformation of C,N-cyclic-N′-acyl azomethine imines by ethyl diazoacetate and trimethylsilyldiazomethane was achieved to give α-diazoacetate moiety-introduced tetrahydroisoquinolines and 3-benzazepine derivatives respectively.
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Diastereoselective synthesis and structure–affinity relationships of σ1 receptor ligands with spirocyclic scaffold

Org. Biomol. Chem., 2023, 21,7730-7752
DOI: 10.1039/D3OB01169K, Paper
Tobias Winge, Dirk Schepmann, Judith Schmidt, Constantin Daniliuc, Ernst-Ulrich Würthwein, Bernhard Wünsch
According to DFT calculations, the synthesis of spirocyclic σ1 ligands involves two aza-Michael additions or a [4 + 2] cycloaddition. Dispiro ligand with a high number of sp3 C-atoms shows promising σ1 affinity, selectivity and physicochemical properties.
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Tetra S-confused porphyrinoids

Org. Biomol. Chem., 2023, 21,7691-7695
DOI: 10.1039/D3OB01270K, Communication
Vishnu Mishra, Hosahalli S. Udaya, Venkataramanarao G. Anand
Maximum confusion in porphyrinoids can be achieved by inter-linking heterocycles only through 2,4-connectivity.
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The diacetyliminoxyl radical in oxidative functionalization of alkenes

Org. Biomol. Chem., 2023, 21,7758-7766
DOI: 10.1039/D3OB00925D, Paper
Alexander S. Budnikov, Igor B. Krylov, Andrey V. Lastovko, Roman A. Dolotov, Mikhail I. Shevchenko, Alexander O. Terent'ev
The intermolecular oxime radical addition to CC bonds was discovered employing stable and reactive diacetyliminoxyl as a novel free-radical reagent.
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Synthesis of amphiphilic hydantoin-based universal peptidomimetics as antibiotic agents

Org. Biomol. Chem., 2023, 21,7702-7706
DOI: 10.1039/D3OB01247F, Communication
Open Access Open Access
Alessio M. Caramiello, Maria Cristina Bellucci, Emerenziana Ottaviano, Silvia Ancona, Elisa Borghi, Alessandro Volonterio
Three model hydantoin-based universal peptidomimetics were designed, synthetized, and investigated as Gram positive and Gram negative antimicrobial agents.
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An organo-photocatalyzed visible-light-driven multi-component approach for carbothioaryl/alkylation of activated alkenes via C(sp3)–H bond functionalization

Org. Biomol. Chem., 2023, 21,7724-7729
DOI: 10.1039/D3OB01150J, Paper
Debabrata Das, Krishna Gopal Ghosh, Sumit Garai, Chandu Palasetty, Sureshkumar Devarajulu
A sustainable organo-photocatalyzed approach for carbothioaryl/alkylation of activated alkenes has been revealed via multi-component C(sp3)–H bond functionalization under a redox-neutral environment.
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