3-5-2 セルロース炭化における5-HMFからのベンゼン環形成挙動

抄録

In the previous study, we found that the yield of 5-hydroxymethylfurfural (5-HMF) and solid carbonized products were in the trade-off relationships in the pyrolysis of cellulose in various aromatic solvents. These results suggest that 5-HMF has a crucial role in cellulose carbonization forming. In the current study, we investigated the mechanisms of benzenering formation via 5-HMF by using ¹³C-labeled 5-HMF derivatives that were formed in situ during the pyrolysis of ¹³Clabeled glucoses. As a result, the furan-ring of 5-HMF was suggested to be cleaved into the smaller reactive fragments before reconstructing the benzene-rings. Role of water in this process is also discussed.