Biopolymer-Metal Complex Wool-Pd: An Efficient and Reusable Heterogeneous Catalyst for the Heck Cross-Coupling Reactions and Aerobic Oxidation of Alcohols in Aqueous Media

Title:Biopolymer-Metal Complex Wool-Pd: An Efficient and Reusable Heterogeneous Catalyst for the Heck Cross-Coupling Reactions and Aerobic Oxidation of Alcohols in Aqueous Media

Volume: 11 Issue: 10

Author(s): Shang Wu, Hong Zhang, Yanbin Wang, Qiong Su, Ziqiang Lei and Lan Wu

Affiliation:

Keywords: Aqueous media, heck reaction, heterogeneous catalyst, oxidation of alcohols, wool-Pd complex.

Abstract: Heterogeneous palladium catalysts, which are supported by biopolymer, have been applied in water-mediated Heck and the oxidation of alcohols cyclic reaction without assistance of any phosphine ligands. More importantly, owing to the interconversion between the Pd⁰ and Pd^II oxidation states during the Heck and oxidation reaction course, the catalyst exhibits good activity in Heck cross-coupling reaction of bromobenzene with styrene and oxidation reaction of alcohols to corresponding aldehydes or ketones without overoxidation using air as the source of molecular oxygen. This heterogeneous wool-Pd catalyst is stable, shows negligible metal leaching, and can be reused several times in reactions without significant loss of activity and selectivity.

Cite this article as:

Wu Shang, Zhang Hong, Wang Yanbin, Su Qiong, Lei Ziqiang and Wu Lan, Biopolymer-Metal Complex Wool-Pd: An Efficient and Reusable Heterogeneous Catalyst for the Heck Cross-Coupling Reactions and Aerobic Oxidation of Alcohols in Aqueous Media, Letters in Organic Chemistry 2014; 11 (10) . https://dx.doi.org/10.2174/1570178611666140829215700