Homogeneously-acid catalyzed oligomerization of glycerol

Nassim Sayoud (1) , Karine de Oliveira Vigier (1) , Tatiana Cucu , Bruno de Meulenaer , Zhaoyu Fan , Jonathan Lai , Jean-Marc Clacens , Armin Liebens , F. Jérôme (1)

1 IC2MP [Poitiers] - Institut de chimie des milieux et matériaux de Poitiers [UMR 7285]

Here we report the screening of various homogeneous acid catalysts in the oligomerization of glycerol at 150 degrees C. Under optimized conditions, a mixture of oligoglycerol with an average degree of oligomerization of 3.4 was obtained at a glycerol conversion of 80%. At such a conversion, the selectivity to oligoglycerols was higher than 90%. Oligoglycerols were then successfully alkylated, offering an attractive route to valuable molecules (biosurfactants or hydrotropes).

Domaines: Catalyse

Nassim Sayoud, Karine de Oliveira Vigier, Tatiana Cucu, Bruno de Meulenaer, Zhaoyu Fan, et al.. Homogeneously-acid catalyzed oligomerization of glycerol . Green Chemistry, 2015, 17, pp.4307-4314. ⟨10.1039/c5gc01020a⟩. ⟨hal-01361777⟩