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Updated: May 18, 2026

Synthesis of Hypervalent Iodonium Alkynyl Triflates for the Application of Generating Cyanocarbenes
Published on: September 8, 2013
Practical and efficient iridium catalysis for benzannulation: an entry to isoindolines
Anne-Laure Auvinet1, Mehdi Ez-Zoubir, Maxime R Vitale
1Chimie ParisTech, Laboratoire Charles Friedel, UMR 7223, 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France.
Iridium(III) catalysis offers a versatile route to synthesize isoindolines using diyne and alkyne cycloaddition. This method yields functionalized aromatic compounds efficiently in green isopropyl alcohol.
Area of Science:
- Organic Chemistry
- Catalysis
- Synthetic Methodology
Background:
- Isoindoline synthesis is crucial for pharmaceuticals and materials science.
- Existing methods often require harsh conditions or limited substrate scope.
Purpose of the Study:
- To develop a convenient and general catalytic method for isoindoline synthesis.
- To explore the utility of Iridium(III) in [2+2+2] cycloaddition reactions.
Main Methods:
- Utilizing Iridium(III) catalysts for [2+2+2] cycloaddition reactions.
- Employing diynes and alkynes as reaction substrates.
- Conducting reactions in isopropyl alcohol as a green solvent.
Main Results:
- Successful synthesis of highly functionalized isoindolines.
- Moderate to excellent yields achieved for the target compounds.
- Demonstration of a general and convenient catalytic approach.
Conclusions:
- Iridium(III) catalysis is an effective strategy for isoindoline preparation.
- The developed method offers a sustainable and efficient route to complex aromatic compounds.
- This methodology broadens the scope of catalytic cycloaddition reactions.
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