TY - JOUR
T1 - Synthesis of fructone and acylal using hexagonally ordered mesoporous aluminosilicate catalyst
AU - Vinu, Ajayan
AU - Justus, Josena
AU - Balasubramanian, Veerappan Vaithilingam
AU - Halligudi, Shivappa Basappa
AU - Ariga, Katsuhiko
AU - Mori, Toshiyuki
PY - 2008/8/1
Y1 - 2008/8/1
N2 - Hexagonally ordered mesoporous AlSBA-15 with different n Si/nAl ratios have been hydrothermally synthesized using the non-ionic copolymer Pluronic P123 surfactant as the structure directing agent and characterized by XRD, N2 adsorption-desorption, and ammonia-temperature programmed desorption (pyridine-TPD). Acetal and acylal formation reactions of organic carbonyl compounds were efficiently catalyzed by AlSBA-15 under liquid-phase reaction conditions and the results were compared with the MFI, BEA and AlMCM-41(23). Of the catalysts studied, A1SBA-15(45) showed the highest activity in both the acetalization and acylal reactions of the carbonyl compounds under the optimized reaction conditions, and could be recycled several times without loss in activity. AlSBA-15(45) catalyst is highly stable, efficient, chemoselective, and environmental friendly, which could open the possibility for environment benign approach for the synthesis of acetals, acylals and its derivatives under mild reaction conditions.
AB - Hexagonally ordered mesoporous AlSBA-15 with different n Si/nAl ratios have been hydrothermally synthesized using the non-ionic copolymer Pluronic P123 surfactant as the structure directing agent and characterized by XRD, N2 adsorption-desorption, and ammonia-temperature programmed desorption (pyridine-TPD). Acetal and acylal formation reactions of organic carbonyl compounds were efficiently catalyzed by AlSBA-15 under liquid-phase reaction conditions and the results were compared with the MFI, BEA and AlMCM-41(23). Of the catalysts studied, A1SBA-15(45) showed the highest activity in both the acetalization and acylal reactions of the carbonyl compounds under the optimized reaction conditions, and could be recycled several times without loss in activity. AlSBA-15(45) catalyst is highly stable, efficient, chemoselective, and environmental friendly, which could open the possibility for environment benign approach for the synthesis of acetals, acylals and its derivatives under mild reaction conditions.
KW - Acetal
KW - Acylal
KW - Adsorption
KW - AlSBA-15
KW - Mesoporous
KW - Silica
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U2 - 10.1135/cccc20081112
DO - 10.1135/cccc20081112
M3 - Article
AN - SCOPUS:57849146223
SN - 0010-0765
VL - 73
SP - 1112
EP - 1124
JO - Collection of Czechoslovak Chemical Communications
JF - Collection of Czechoslovak Chemical Communications
IS - 8-9
ER -