1106675-65-3Relevant academic research and scientific papers
One-step surface decoration of poly(propyleneimines) (PPIs) with the glyceryl moiety: New way for recycling homogeneous dendrimer-based catalysts
Balieu, Sebastien,Zein, Anji El,De Sousa, Rodolphe,Jerome, Francois,Tatibouet, Arnaud,Gatard, Sylvain,Pouilloux, Yannick,Barrault, Joel,Rollin, Patrick,Bouquillona, Sandrine
, p. 1826 - 1833 (2010)
First to fifth generations of poly(propy-leneimines) (PPIs) were reacted with glycerol carbonate yielding a new family of glycerol-decorated PPIs (GD-PPI). Owing to the presence of glyceryl units surrounding the PPI core, the high generation GD-PPI-5 can be successfully immobilized in a glycerol phase, thus offering a convenient route for possible utilization as a recyclable homogeneous catalyst. In this context, we show here that GDPPI-5 can be used as a basic catalyst in the ring opening of epoxides with carboxylic acids in glycerol. The high affinity of GD-PPI-5 for the glycerol phase allowed us to (i) selectively extract the reaction products from the glycerol/GD-PPI-5 mixture and (ii) recycle the GD-PPI-5 catalyst. More generally, this work offers new tools for the convenient recycling of valuable but expensive dendrimers.
Rational design of sugar-based-surfactant combined catalysts for promoting glycerol as a solvent
Karam, Ayman,Villandier, Nicolas,Delample, Mathieu,Koerkamp, Carmen Klein,Douliez, Jean-Paul,Granet, Robert,Krausz, Pierre,Barrault, Joel,Jerome, Francois
supporting information; experimental part, p. 10196 - 10200 (2009/10/16)
The use of glycerol as a solvent for environmentally friendly organic reactions has been demonstrated. It was observed that the surfactant combined catalysts (SCCs) with glycerol can enhance the diffusion of organic substrate in the glycerol. The study found that micellar catalysis in glycerol form a unstable emulsions. The study also investigated the reaction of 1,2-epoxydodecane with dodecanoic acid at at temperature of 110°C in glycerol. Diethoanolamine with dodecanoic acid can be used as a phase-transfer agent which can accelerate the diffusion of organic substrate in the glycerol. The study also concluded that the surfactant need to be use with a catalysis to use glycerol as solvent for the improved diffusion of organic compounds. The study used renewable resources to provide an eco-friendly environment during all reactions.
