Phosphine‐Catalyzed (3+2) Annulation of Isoindigos with Allenes: Enantioselective Formation of Two Vicinal Quaternary Stereogenic Centers. (27th February 2019)
- Record Type:
- Journal Article
- Title:
- Phosphine‐Catalyzed (3+2) Annulation of Isoindigos with Allenes: Enantioselective Formation of Two Vicinal Quaternary Stereogenic Centers. (27th February 2019)
- Main Title:
- Phosphine‐Catalyzed (3+2) Annulation of Isoindigos with Allenes: Enantioselective Formation of Two Vicinal Quaternary Stereogenic Centers
- Authors:
- Chan, Wai‐Lun
Tang, Xiaodong
Zhang, Fuhao
Quek, Glenn
Mei, Guang‐Jian
Lu, Yixin - Abstract:
- Abstract: Construction of contiguous all‐carbon quaternary stereogenic centers is a long‐standing challenge in synthetic organic chemistry. In this report, a phosphine‐catalyzed enantioselective (3+2) annulation reaction between allenes and isoindigos, containing either two identical or different oxindole moieties, is introduced as a powerful strategy for the construction of spirocyclic bisindoline alkaloid core structures. The reported reactions feature high chemical yields, excellent enantioselectivities, and very good regioselectivities, and are highly useful for creating structurally challenging bisindoline natural products. Abstract : Strategischer Zug : Die phosphinkatalysierte enantioselektive (3+2)‐Anellierung zwischen Allenen und Isoindigos wird als eine leistungsfähige Strategie für den Aufbau von Strukturmotiven mit zwei vicinalen quartären stereogenen Zentren vorgestellt. Die Reaktionen zeichnen sich durch hohe Ausbeuten, Enantioselektivitäten und Regiolektivitäten aus und sind sehr nützlich für die Herstellung von strukturell anspruchsvollen Hexahydropyrroloindolen (HPIs).
- Is Part Of:
- Angewandte Chemie. Volume 131:Number 19(2019)
- Journal:
- Angewandte Chemie
- Issue:
- Volume 131:Number 19(2019)
- Issue Display:
- Volume 131, Issue 19 (2019)
- Year:
- 2019
- Volume:
- 131
- Issue:
- 19
- Issue Sort Value:
- 2019-0131-0019-0000
- Page Start:
- 6326
- Page End:
- 6330
- Publication Date:
- 2019-02-27
- Subjects:
- Alkaloide -- Allene -- Anellierungen -- Organokatalyse -- Spiroverbindungen
Chemistry -- Periodicals
540 - Journal URLs:
- http://onlinelibrary.wiley.com/ ↗
- DOI:
- 10.1002/ange.201900758 ↗
- Languages:
- English
- ISSNs:
- 0044-8249
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 0902.000000
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 16671.xml