Reductive splitting of cellulose in the ionic liquid 1-butyl-3-methylimidazolium chloride.
The depolymerization of cellulose is carried out in the ionic liquid 1-butyl-3-methylimidazolium chloride in the presence of hydrogen gas. First, the ketal 1,1-diethoxycyclohexane and cellobiose were used as model substrates. For the depolymerization of cellulose itself, the combination of a heterogeneous metal catalyst and a homogeneous ruthenium catalyst proved effective. One of the possible roles of the ruthenium compound is to enhance the transfer of hydrogen to the metallic surface. The cellulose is fully converted under relatively mild conditions, with sorbitol as the dominant product in 51-74% yield.
Ignatyev
Igor A
IA
Centre for Surface Chemistry and Catalysis, K.U. Leuven, Kasteelpark Arenberg 23, PO Box 2461, 3001 Leuven, Belgium.
Van Doorslaer
Charlie
C
Mertens
Pascal G N
PG
Binnemans
Koen
K
De Vos
Dirk E
DE
D055162:Biocatalysis; D002475:Cellobiose / Q000737:chemistry; D002482:Cellulose / Q000737:chemistry*; D003508:Cycloheptanes / Q000737:chemistry; D005019:Ethyl Ethers / Q000737:chemistry; D006859:Hydrogen / Q000737:chemistry; D007093:Imidazoles / Q000737:chemistry*; D052578:Ionic Liquids / Q000737:chemistry*; D008956:Models, Chemical; D010084:Oxidation-Reduction; D012428:Ruthenium / Q000737:chemistry; D012995:Solubility; D013012:Sorbitol / Q000737:chemistry; D013696:Temperature
D003508:Cycloheptanes; D005019:Ethyl Ethers; D007093:Imidazoles; D052578:Ionic Liquids; D002475:Cellobiose; C502841:1-butyl-3-methylimidazolium chloride; D013012:Sorbitol; D012428:Ruthenium; D006859:Hydrogen; D002482:Cellulose