Related Experiment Video
Updated: May 30, 2026
09:58
Fabrication of Ti3C2 MXene Microelectrode Arrays for In Vivo Neural Recording
Published on: February 12, 2020
Site-selectively functionalizing microelectrode arrays: the use of Cu(I)-catalysts
Jennifer Bartels1, Peng Lu, Karl Maurer
1Department of Chemistry, Washington University, St. Louis, Missouri 63130, USA.
Langmuir : the ACS Journal of Surfaces and Colloids
|July 22, 2011
Summary
Site-selective copper(I)-catalyzed reactions on microelectrode arrays were developed. Oxygen confines reactions to specific electrodes, enabling general coupling of nucleophiles to iodides, with ligand choice being critical.
Area of Science:
- Electrochemistry
- Organic Synthesis
- Materials Science
Background:
- Microelectrode arrays offer precise control for chemical reactions.
- Copper(I)-catalyzed reactions are versatile tools in organic synthesis.
- Site-selectivity is crucial for complex molecule construction.
Purpose of the Study:
- To develop site-selective copper(I)-catalyzed reactions on microelectrode arrays.
- To utilize oxygen as a confining agent for reaction localization.
- To explore the generality of these reactions for various nucleophiles and substrates.
Main Methods:
- Employing microelectrode arrays for electrochemical reactions.
- Using oxygen as a confining agent to localize reactions.
- Investigating copper(I) catalysis with different ligands and nucleophiles.
- Comparing divided and undivided cell electrolysis setups.
Main Results:
- Demonstrated site-selective copper(I)-catalyzed coupling of amine, alcohol, and sulfur nucleophiles to vinyl and aryl iodides.
- Oxygen successfully confined reactions to preselected electrodes.
- Reaction efficiency and scope were influenced by the electrode array type (divided vs. undivided cells).
- A non-sugar-derived porous reaction layer enhanced substrate attachment on 12-K arrays.
Conclusions:
- Developed a general method for site-selective copper(I)-catalyzed reactions on microelectrode arrays.
- Oxygen confinement and reaction layer properties are key factors for success.
- Ligand selection significantly impacts the catalytic performance.
