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A new carbonaceous catalyst with sulfonic acid group (-SO3H) was prepared by incomplete carbonization of β-cyclodextrin followed by sulfonation. The sulfonated amorphous carbon was characterized by IR, elemental analysis, DSC-TGA and PXRD, and the catalytic activity was investigated to be an efficient catalyst for the esterification reactions with maximum yield of 87%. The sulfonated carbonaceous catalyst was readily separated from the reaction solution and keeps approximately equal catalytic activity. The results confirm that the active centre is the hydrophilic sulfonic acid functional group in the esterification reactions.

参考文献

[1] Selmi B.;Thomas D. .Immobilized lipase-catalyzed ethanolysis of sunflower oil in a solvent-free medium[J].Journal of the American Oil Chemists' Society,1998(6):691-695.
[2] Lotero, E;Liu, YJ;Lopez, DE;Suwannakarn, K;Bruce, DA;Goodwin, JG .Synthesis of biodiesel via acid catalysis[J].Industrial & Engineering Chemistry Research,2005(14):5353-5363.
[3] F. Peng;L. Zhang;H. Wang .Sulfonated carbon nanotubes as a strong protonic acid catalyst[J].Carbon: An International Journal Sponsored by the American Carbon Society,2005(11):2405-2408.
[4] Michikazu Hara;Takemi Yoshida;Atsushi Takagaki;Tsuyoshi Takata;Junko N.kondo;Shigenobu Hayashi .A Carbon Material as a Strong Protonic Acid[J].Angewandte Chemie,2004(22):2955-2958.
[5] Okamura M;Takagaki A;Toda M;Kondo JN;Domen K;Tatsumi T;Hara M;Hayashi S .Acid-catalyzed reactions on flexible polycyclic aromatic carbon in amorphous carbon[J].Chemistry of Materials: A Publication of the American Chemistry Society,2006(13):3039-3045.
[6] Suganuma S;Nakajima K;Kitano M;Yamaguchi D;Kato H;Hayashi S;Hara M .Hydrolysis of cellulose by amorphous carbon bearing SO3H, COOH, and OH groups[J].Journal of the American Chemical Society,2008(38):12787-12793.
[7] Bentley Ronald .Mycophenolic Acid: A One Hundred Year Odyssey from Antibiotic to Immunosuppressant[J].Chemical Reviews,2000(10):3801-3825.
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