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Updated: Jun 9, 2025

Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry
Published on: October 18, 2019
N-Heterocyclic Silylene-Cu(I) Complexes as Efficient Catalysts for Three-Component Coupling Reactions.
Kashish1, Md Jabed Hossain1, Shabana Khan1
1Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008, India.
NHSi-supported copper(I) catalysts efficiently synthesize propargyl amines via A3 and KA2 coupling reactions. These reactions proceed in high yields under environmentally friendly, solvent-free conditions.
Area of Science:
- Organometallic Chemistry
- Catalysis
- Organic Synthesis
Background:
- Three-component coupling reactions like A3 and KA2 are vital for synthesizing propargyl amines.
- Developing efficient and sustainable catalytic systems is crucial for these transformations.
Purpose of the Study:
- To investigate NHSi-supported copper(I) complexes as catalysts for A3 and KA2 reactions.
- To achieve high yields and efficiency in propargyl amine synthesis.
Main Methods:
- Utilized NHSi-supported copper(I) complexes as catalysts.
- Performed A3 (aldehyde-alkyne-amine) and KA2 (ketone-alkyne-amine) coupling reactions.
- Conducted reactions under solvent- and additive-free conditions.
Main Results:
- Copper(I) complexes demonstrated high catalytic activity.
- Excellent yields of propargyl amines were obtained.
- High turnover frequencies (TOF) were observed, indicating efficiency.
Conclusions:
- NHSi-supported copper(I) complexes are effective catalysts for A3 and KA2 reactions.
- The developed method offers a sustainable route to propargyl amines.
- The solvent- and additive-free conditions align with green chemistry principles.
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