Oxidation of a lignin model compound of benzyl-ether type linkage in water with H2O2 under an oxygen atmosphere catalyzed by Co(Salen)

• Autorzy: Zhou X. F. , Quin J. X. , Wang S. R.

Warianty tytułu

PL

Utlenianie modelowego związku ligniny z typem wiązania benzylowo-eterowego w wodzie z H2O2 w atmosferze tlenu katalizowane Co(Salen)

• Języki publikacji: EN

Abstrakty

EN

The catalytic properties of Cobalt salen? complex in the oxidation of a lignin model compound [veratrylglycerol-beta-guaiacyl-alpha,gamma-dimethylether, VGD] have been investigated in order to obtain the mechanistic aspects of the reaction between Co(salen) and VGD under an oxygen atmosphere using hydrogen peroxide as an oxidant. VGD was found to undergo structural changes in response to the catalytic reaction as characterised by different analytical techniques (FT-IR, H-1 NMR and GC-MS), yielding 2-methoxy phenol and biphenyl. A mechanism for the oxidation of VGD was postulated.

PL

Zbadano katalityczne właściwości kompleksu Co(Salen) w utlenianiu modelowego związku ligniny (veratrylglycerol-alfa-guaiacyl-beta,gamma-dimetyleter, VGD) w celu określenia mechanicznych aspektów reakcji pomiędzy Co(salen) i VGD w atmosferze tlenu przy zastosowaniu nadtlenku wodoru jako utleniacza. Zaobserwowano, że w VGD zaszły zmiany strukturalne w odpowiedzi na reakcję katalityczną, co przedstawiono za pomocą różnych technik analitycznych (FTIR, H-1 NMR oraz GC-MS). W efekcie otrzymano 2-metoksy fenol i bifenyl.

Słowa kluczowe

EN

catalytic oxidation; veratrylglycerol-beta-guaiacyl-alpha,gamma-dimethylether; VGD; Co(salen); FTIR; H-1 NMR; GC-MS

PL

utlenianie katalityczne; veratrylglycerol-alfa-guaiacyl-beta,gamma-dimetyleter (VGD); Co(salen); FTIR; H-1 NMR; GC-MS

• Wydawca: Sieć Badawcza Łukasiewicz - Poznański Instytut Technologiczny
• Czasopismo: Drewno : prace naukowe, doniesienia, komunikaty
• Rocznik: 2011
• Tom: vol. 54, nr 186
• Strony: 15--25
• Opis fizyczny: Bibliogr. 20 poz., rys., tab.

Twórcy

autor

Zhou X. F.

autor

Quin J. X.

autor

Wang S. R.

• Kunming University of Science and Technology; South China University of Technology, Guangzhou; Nanjing University of Technology; Beijing University of Chemical Technology; Southwest University of Science and Technology, Mianyang, China,

Bibliografia

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