Deracemizing α-Branched Carboxylic Acids by Catalytic Asymmetric Protonation of Bis-Silyl Ketene Acetals with Water or Methanol.

Brønsted acids bis-silyl ketene acetals deracemization deuteration disulfonimide protonation

Journal

Angewandte Chemie (International ed. in English)
ISSN: 1521-3773
Titre abrégé: Angew Chem Int Ed Engl
Pays: Germany
ID NLM: 0370543

Informations de publication

Date de publication:
12 08 2019
Historique:
received: 06 05 2019
pubmed: 28 5 2019
medline: 28 5 2019
entrez: 28 5 2019
Statut: ppublish

Résumé

We report a highly enantioselective catalytic protonation of bis-silyl ketene acetals. Our method delivers α-branched carboxylic acids, including nonsteroidal anti-inflammatory arylpropionic acids such as Ibuprofen, in high enantiomeric purity and high yields. The process can be incorporated in an overall deracemization of α-branched carboxylic acids, involving a double deprotonation and silylation followed by the catalytic asymmetric protonation.

Identifiants

pubmed: 31131975
doi: 10.1002/anie.201905623
doi:

Types de publication

Journal Article Research Support, Non-U.S. Gov't

Langues

eng

Sous-ensembles de citation

IM

Pagination

11479-11482

Subventions

Organisme : European Research Council
ID : Advanced Grant "C-H Acids for Organic Synthesis, CHAOS
Pays : International

Informations de copyright

© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

Auteurs

Francesca Mandrelli (F)

Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany.

Aurélie Blond (A)

Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany.

Thomas James (T)

Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany.

Hyejin Kim (H)

Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany.

Benjamin List (B)

Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany.

Classifications MeSH