Pd nanosized particles supported on chitosan and 6-deoxy-6-amino chitosan as recyclable catalysts for Suzuki–Miyaura and Heck cross-coupling reactions

Efficient C--C cross-coupling reactions by (isatin)-Schiff base functionalized magnetic nanoparticle-supported Cu(II) acetate as a magnetically recoverable catalyst

“…5,6 Although homogeneous palladium complexes as conventional catalysts in crosscoupling reactions have shown high reaction rates, suitable turnover numbers, and sometimes perfect selectivity and yield, these types of catalysts suffer from the problem of recycling of the catalyst as well as instability during reaction at high temperatures. 7,8 Recoverability and reusability of the catalyst are a challenge from environmental and economic points of view, especially when precious metal catalysts are used. In this regard, magnetic nanoparticles (MNPs) can particularly meet this challenge due to their ability to easily separate from liquid reaction media by an external magnetic field.…”

Diethylenetriamine-functionalized single-walled carbon nanotubes (SWCNTs) to immobilization palladium as a novel recyclable heterogeneous nanocatalyst for the Suzuki–Miyaura coupling reaction in aqueous media

“…Recently, the immobilization of Pd nanoparticles on solid supports has received considerable attention as a new generation of heterogeneous catalysts in various scientific fields and Suzuki reaction, because of their superior catalytic performance, good stability, ease of separation and satisfactory reusability in comparison to the traditional homogeneous Pd (OAc) 2 , PdCl 2 catalysts [17][18][19][20][21][22][23][24][25][26][27]. However, the catalytic activity of Pd 2+ -CNTs decreased gradually when the catalyst was used repeatedly.…”

Chitosan as an Advanced Healthcare Material

“…In order to increase polymer solubility, derivatives of chitosan have been synthesized by attaching hydrophilic or hydrophobic groups to the polymer backbone. One particular route to increase solubility, involves the conversion of the C-6 hydroxy group into a carboxy or amino group, thereby increasing solubility in organic and aqueous solvents [10,11].…”