Green Chem., 2014, Advance Article
DOI: 10.1039/C4GC00525B, Paper
DOI: 10.1039/C4GC00525B, Paper
Pankaj Nehra,a Bharti Khungar,*a Kasiviswanadharaju Pericherla,a S. C. Sivasubramaniana and Anil Kumar*a
*
Corresponding authors
a
Department of Chemistry, Birla Institute of Technology and Science, Pilani, Pilani Campus, India
E-mail: bkhungar@pilani.bits-pilani.ac.in,anilkumar@pilani.bits-pilani.ac.in;
Fax: +91 5196 244183 ;
Tel: +91 5196 5155652
E-mail: bkhungar@pilani.bits-pilani.ac.in,anilkumar@pilani.bits-pilani.ac.in;
Fax: +91 5196 244183 ;
Tel: +91 5196 5155652
A highly recyclable ionic liquid-tagged palladium complex has been synthesized and used as an efficient catalyst for Suzuki and Heck couplings in aqueous media.
An air stable, water soluble, and efficient ionic liquid-tagged Schiff base palladium complex was prepared. The synthesized complex was well characterized by NMR, mass spectrometry, FT-IR, UV-visible spectroscopy and powder X-ray diffraction. The complex was used as a catalyst for the Suzuki and Heck cross-coupling reactions in water. Good to excellent yields were achieved using a modest amount of the catalyst. In addition, the catalyst can be easily reused and recycled for six steps without much loss in activity, exhibiting an example of sustainable and green methodology.
