《Comprehensive insights into xylan structure evolution via multi-perspective analysis during slow pyrolysis process》 was written by Liang, Jiajin; Chen, Jiao; Wu, Shubin; Liu, Chao; Lei, Ming. Recommanded Product: 19444-84-9 And the article was included in Fuel Processing Technology on April 30 ,2019. The article conveys some information:
Comprehension in hemicellulose pyrolysis is critical to generate renewable fuel and valuable chem. Herein, a self-designed tubular reactor was applied to observe the appearance alteration and chem. structure evolution during the whole xylan pyrolysis process. Before 200°C, it was free moisture removal stage without significant chem. structure alteration. Xylan began to depolymerize at 200°C corresponding with the appearance change from its original state to dark brown, cleavage of branched-chain and primary product acids & ketones generation. The main chain of xylan was completely broken at 250-350°C via β-1,4-glycosidic bond cleavage, dehydration, decarboxylation, and decarbonylation reaction. Acids were mainly originated from hemicellulose pyrolysis. The typical signals from FTIR, 13C CP/MAS NMR were disappeared at 350°C. In the carbonation stage, the C/H and C/O ratio reached 2.01 and 4.54, leading to the aromaticity enhancement of char and formation of carbon-centered radicals.3-Hydroxydihydrofuran-2(3H)-one(cas: 19444-84-9Recommanded Product: 19444-84-9) was used in this study.
3-Hydroxydihydrofuran-2(3H)-one(cas: 19444-84-9) may be employed as starting reagent in the synthesis of series of seco-pseudonucleoside synthons via aminolysis. It may be employed as starting reagent in the synthesis of enantiomerically pure orthogonally protected δ-azaproline, via Mitsunobu reaction.Recommanded Product: 19444-84-9
Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem