Visible-Light-Controlled Ruthenium-Catalyzed Olefin Metathesis.

J Am Chem Soc

Department of Chemistry , Columbia University, New York , New York 10027 , United States.

Published: May 2019

AI Article Synopsis

  • Olefin metathesis is a major method for creating new carbon-carbon bonds, focusing on developing latent catalysts that activate through external stimuli.
  • Recent advancements include a system that combines olefin metathesis with photoredox catalysis, allowing for precise control using visible light.
  • The new method demonstrates applications in synthesis, polymer patterning, and photolithography, highlighting its effectiveness in spatially resolved reactions.

Article Abstract

Olefin metathesis is now one of the most efficient ways to create new carbon-carbon bonds. While most efforts focused on the development of ever-more efficient catalysts, a particular attention has recently been devoted to developing latent metathesis catalysts, inactive species that need an external stimulus to become active. This furnishes an increased control over the reaction which is crucial for applications in materials science. Here, we report our work on the development of a new system to achieve visible-light-controlled metathesis by merging olefin metathesis and photoredox catalysis. The combination of a ruthenium metathesis catalyst bearing two N-heterocyclic carbenes with an oxidizing pyrylium photocatalyst affords excellent temporal and spatial resolution using only visible light as stimulus. Applications of this system in synthesis, as well as in polymer patterning and photolithography with spatially resolved ring-opening metathesis polymerization, are described.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7097883PMC
http://dx.doi.org/10.1021/jacs.8b13663DOI Listing

Publication Analysis

Top Keywords

olefin metathesis
12
metathesis
7
visible-light-controlled ruthenium-catalyzed
4
ruthenium-catalyzed olefin
4
metathesis olefin
4
metathesis efficient
4
efficient ways
4
ways create
4
create carbon-carbon
4
carbon-carbon bonds
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!