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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

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.

Date of publication of this fulltext: 26 Jan 2026 16:29
Article
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.



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Details

Item typeArticle
Journal or Publication TitleThe Journal of Organic Chemistry
Publisher:American Chemical Society (ACS)
Volume:91
Number of Issue or Book Chapter:1
Page Range:pp. 793-797
Date26 December 2026
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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