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Frank, Eduard ; Park, Sooyoung ; Harrer, Elias ; Flügel, Jana L. ; Fischer, Marcel ; Nuernberger, Patrick ; Rehbein, Julia ; Breder, Alexander

Asymmetric Migratory Tsuji–Wacker Oxidation Enables the Enantioselective Synthesis of Hetero- and Isosteric Diarylmethanes

Frank, Eduard , Park, Sooyoung , Harrer, Elias , Flügel, Jana L., Fischer, Marcel, Nuernberger, Patrick , Rehbein, Julia und Breder, Alexander (2024) Asymmetric Migratory Tsuji–Wacker Oxidation Enables the Enantioselective Synthesis of Hetero- and Isosteric Diarylmethanes. Journal of the American Chemical Society 146 (50), S. 34383-34393.

Veröffentlichungsdatum dieses Volltextes: 14 Jan 2025 08:39
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.74650


Zusammenfassung

Diarylmethanes play, in part, a pivotal role in the design of highly potent, chiral, nonracemic drugs whose bioactivity is typically affected by the substitution pattern of their arene units. In this context, certain arenes such as para-substituted benzenes or unsubstituted heteroarenes cause particular synthetic challenges, since such isosteric residues at the central methane carbon atom are ...

Diarylmethanes play, in part, a pivotal role in the design of highly potent, chiral, nonracemic drugs whose bioactivity is typically affected by the substitution pattern of their arene units. In this context, certain arenes such as para-substituted benzenes or unsubstituted heteroarenes cause particular synthetic challenges, since such isosteric residues at the central methane carbon atom are typically indistinguishable for a chiral catalyst. Hence, the stereoselective incorporation of isosteric (hetero)arenes into chiral methane scaffolds requires the use of stoichiometrically differentiated building blocks, which is typically realized through preceding redox-modifying operations such as metalation or halogenation and thus associated with disadvantageous step- and redox-economic traits. As a counter-design, we report herein a generalized enantioselective synthesis of chiral diarylmethanes by means of an asymmetric migratory Tsuji–Wacker oxidation of simple stilbenes. The title protocol relies on the well-adjusted interplay of aerobic photoredox and selenium-π-acid catalysis to allow for the installation of a broad variety of arenes, including isosteric ones, into the methane core. Facial differentiation and regioselectivity are solely controlled by the selenium catalyst, which (a) renders the E/Z-configuration of the stilbene substrates inconsequential and (b) permits the stereodivergent synthesis of both product enantiomers from a single catalyst enantiomer, simply by employing constitutionally isomeric starting materials. Altogether, this multicatalytic platform offers the target structures with high levels of enantioselectivity in up to 97% ee, which has also been successfully exploited in expedited syntheses of antihistaminic (R)- and (S)-neobenodine.



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Details

DokumentenartArtikel
Titel eines Journals oder einer ZeitschriftJournal of the American Chemical Society
Verlag:American Chemical Society (ACS)
Band:146
Nummer des Zeitschriftenheftes oder des Kapitels:50
Seitenbereich:S. 34383-34393
Datum7 Dezember 2024
InstitutionenChemie und Pharmazie > Institut für Organische Chemie
Projekte
Gefördert von: Europäische Kommission (EU) (803426)
Gefördert von: Deutsche Forschungsgemeinschaft (DFG) (444632635)
Identifikationsnummer
WertTyp
10.1021/jacs.4c09405DOI
Stichwörter / KeywordsCatalysts, Hydrocarbons, Molecular structure, Oxidation, Selenium
Dewey-Dezimal-Klassifikation500 Naturwissenschaften und Mathematik > 540 Chemie
StatusVeröffentlicht
BegutachtetJa, diese Version wurde begutachtet
An der Universität Regensburg entstandenJa
URN der UB Regensburgurn:nbn:de:bvb:355-epub-746508
Dokumenten-ID74650

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