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Frank, Eduard ; Flügel, Jana L. ; d’Heureuse, Ludwig ; Woick, Sophie ; Breder, Alexander

Enantioconvergent Synthesis of Diarylmethane Drugs via Privileged Benzhydrol Intermediates

Article

Frank, Eduard , Flügel, Jana L., d’Heureuse, Ludwig, Woick, Sophie and Breder, Alexander (2026) Enantioconvergent Synthesis of Diarylmethane Drugs via Privileged Benzhydrol Intermediates. The Journal of Organic Chemistry 91 (1), pp. 793-797.

DOI to cite this document: 10.5283/epub.78513


Abstract

The benzhydryl motif is a privileged pharmacophore in antihistaminic and neuroactive drugs. We present a broadly applicable, enantioconvergent synthesis of benzhydrols via asymmetric migratory Tsuji-Wacker oxidation of stilbenes. This constitutionally stereodivergent protocol operates without preactivated or sterically biased substrates, affording chiral α,α-diaryl ketones in up to 91% ee, which ...

The benzhydryl motif is a privileged pharmacophore in antihistaminic and neuroactive drugs. We present a broadly applicable, enantioconvergent synthesis of benzhydrols via asymmetric migratory Tsuji-Wacker oxidation of stilbenes. This constitutionally stereodivergent protocol operates without preactivated or sterically biased substrates, affording chiral α,α-diaryl ketones in up to 91% ee, which convert to benzhydrols without erosion of stereochemistry. The method enables concise syntheses of (S)-cloperastine and isotopically labeled (S)-diphenhydramine-d5, establishing chiral benzhydrols as versatile intermediates for redox- and step-economic drug assembly.



Involved Institutions


Details

Item typeArticle
Journal or Publication TitleThe Journal of Organic Chemistry
PublisherAmerican Chemical Society (ACS)
Open Access TypeACS Hybrid
Volume91
Number of Issue or Book Chapter1
Page Rangepp. 793-797
Date26 December 2026
Date of publication26 Jan 2026 16:29
InstitutionsChemistry and Pharmacy > Institut für Organische Chemie
Chemistry and Pharmacy > Institut für Organische Chemie > Arbeitskreis Prof. Dr. Alexander Breder
Projects
Funded by: Deutsche Forschungsgemeinschaft (DFG) (444632635)
Funded by: Europäische Kommission (EU) (803426)
Identification Number
ValueType
10.1021/acs.joc.5c02530DOI
KeywordsAromatic compounds; Enantioselective synthesis; Hydrocarbons; Ketones; Pharmaceuticals
Dewey Decimal Classification500 Science > 540 Chemistry & allied sciences
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgYes
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-785135
Item ID78513

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