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Depolymerization of Lignin in Wood with Molecular Hydrogen Iodide

Sergey M. Shevchenko ; Nalco Chemical Company, One Nalco Center, Naperville, IL 60536-1198, U.S.A.

Puni tekst: engleski, pdf (95 KB) str. 831-841 preuzimanja: 278* citiraj
APA 6th Edition
Shevchenko, S.M. (2000). Depolymerization of Lignin in Wood with Molecular Hydrogen Iodide. Croatica Chemica Acta, 73 (3), 831-841. Preuzeto s https://hrcak.srce.hr/132021
MLA 8th Edition
Shevchenko, Sergey M.. "Depolymerization of Lignin in Wood with Molecular Hydrogen Iodide." Croatica Chemica Acta, vol. 73, br. 3, 2000, str. 831-841. https://hrcak.srce.hr/132021. Citirano 20.09.2020.
Chicago 17th Edition
Shevchenko, Sergey M.. "Depolymerization of Lignin in Wood with Molecular Hydrogen Iodide." Croatica Chemica Acta 73, br. 3 (2000): 831-841. https://hrcak.srce.hr/132021
Harvard
Shevchenko, S.M. (2000). 'Depolymerization of Lignin in Wood with Molecular Hydrogen Iodide', Croatica Chemica Acta, 73(3), str. 831-841. Preuzeto s: https://hrcak.srce.hr/132021 (Datum pristupa: 20.09.2020.)
Vancouver
Shevchenko SM. Depolymerization of Lignin in Wood with Molecular Hydrogen Iodide. Croatica Chemica Acta [Internet]. 2000 [pristupljeno 20.09.2020.];73(3):831-841. Dostupno na: https://hrcak.srce.hr/132021
IEEE
S.M. Shevchenko, "Depolymerization of Lignin in Wood with Molecular Hydrogen Iodide", Croatica Chemica Acta, vol.73, br. 3, str. 831-841, 2000. [Online]. Dostupno na: https://hrcak.srce.hr/132021. [Citirano: 20.09.2020.]

Sažetak
Depolymerization of lignin in wood with hydrogen iodide in a non-polar solvent is a selective, high-yield reaction that releases a diiodide of potential synthetic value into the solution. Finely milled wood (Douglas-fir, spruce, aspen, and sugarcane), was suspended in CDCl3 and treated with dry hydrogen iodide in a NMR tube. The yields and composition of the chloroform-soluble monomeric lignin depolymerization products, 1,3-diiodo-1-(4-hydroxyaryl)propanes, originated from guaiacyl (G), syringyl (S) and 4-hydroxyphenyl (H) units were assessed on a semi-quantitative basis. 1,3-Diiodoguaia-cylpropane was the only product obtained from softwood whereas hardwood and grassy materials gave the mixtures of two (G, S) and three (G, S, H) products, respectively. This finding opens new avenues in utilization of wood wastes.

Ključne riječi
lignin; wood; hydrogen iodide; depolymerization

Hrčak ID: 132021

URI
https://hrcak.srce.hr/132021

Posjeta: 388 *