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Contents Vol 62(4)

An Efficient and Simple One-Pot Synthesis of β-Acetamido Ketones Catalyzed by Ytterbium Triflate in Ionic Liquid

Anil Kumar A B , M. Sudershan Rao A , Israr Ahmad A and Bharti Khungar A
+ Author Affiliations
- Author Affiliations

A Chemistry Group, Birla Institute of Technology and Science, Pilani 333 031, India.

B Corresponding author. Email: anilkumar@bits-pilani.ac.in

Australian Journal of Chemistry 62(4) 322-327 https://doi.org/10.1071/CH08557
Submitted: 18 December 2008  Accepted: 4 March 2009   Published: 24 April 2009

Abstract

Ytterbium triflate immobilized in the ionic liquid [bmim][BF4] catalyzes the three-component coupling of aromatic aldehydes, enolizable ketones, and acetonitrile in the presence of acetyl chloride at room temperature to afford β-acetamido ketones in good yields. The catalyst can be recovered and recycled for subsequent reactions without any appreciable loss of efficiency.


Acknowledgements

The authors thank the Council of Scientific and Industrial Research (CSIR), New Delhi, for financial support (Project no. 01(2214)/08/EMR-II), and I. Ahmad thanks Birla Institute of Technology and Science, Pilani, for institutional fellowships. We are also thankful to Mr Avtar Singh at The Sophisticated Analytical Instrumentation Facility, Panjab University, Chandigarh, Punjab, for recording the 1H NMR spectra of the samples.


References


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