Chemoselective and Regioselective Synthesis of Spiroisoindolinone Indenes via an Intercepted Meyer-Schuster Rearrangement/Intramolecular Friedel-Crafts Alkylation Relay
- Resource Type
- Authors
- Nikola Topolovčan; Marina Degač; Ana Čikoš; Matija Gredičak
- Source
- Journal of Organic Chemistry
- Subject
- Organic Chemistry
Acid-catalyzed reactions
Aromatic nucleophiles
Chemoselective
Friedel-Crafts alkylation
Higher yield
Intramolecular friedel-crafts
Isoindolinone
Meyer-Schuster rearrangement
Propargylic alcohols
Regioselective synthesis
- Language
- Croatian
A Brønsted acid-catalyzed reaction between isoindolinone-derived propargylic alcohols and external aromatic nucleophiles for the construction of spiroisoindolinone indenes is described. The reaction proceeds rapidly with a broad range of substrates to generate spiroindenes chemoselectively and regioselectively in moderate to high yields. Key to the success of this transformation is an intercepted Meyer-Schuster rearrangement/intramolecular Friedel-Crafts alkylation relay that offers a modular approach in the synthesis of target compounds.