TY - JOUR
T1 - Solvent controlled catalysis: Synthesis of aldehyde, acid or ester by selective oxidation of benzyl alcohol with gold nanoparticles on alumina
AU - Rautiainen, Sari
AU - Simakova, Olga
AU - Guo, Hongfan
AU - Leino, Anne-Riikka
AU - Kordás, Krisztián
AU - Murzin, Dmitry
AU - Leskelä, Markku
AU - Repo, Timo
PY - 2014
Y1 - 2014
N2 - As shown herein, selectivity of aerobic oxidation of benzyl alcohol with gold nanoparticles dispersed on Al2O3 support is solvent-controlled. Using different solvents, the reaction was directed toward a variety of products: benzaldehyde, benzoic acid or benzoic esters were selectively produced from benzyl alcohol depending on the conditions. In toluene, benzaldehyde was produced with high selectivity, while quantitative conversion to benzoic acid was achieved in alkaline water. In methanol, methyl benzoate was produced with very high yield. Moreover, activity of the catalyst was dramatically improved without loss of selectivity in biphasic media; with a toluene/alkaline water system the highest TOF for benzoic acid synthesis was close to 5200 h−1, selectivity being 98%.
AB - As shown herein, selectivity of aerobic oxidation of benzyl alcohol with gold nanoparticles dispersed on Al2O3 support is solvent-controlled. Using different solvents, the reaction was directed toward a variety of products: benzaldehyde, benzoic acid or benzoic esters were selectively produced from benzyl alcohol depending on the conditions. In toluene, benzaldehyde was produced with high selectivity, while quantitative conversion to benzoic acid was achieved in alkaline water. In methanol, methyl benzoate was produced with very high yield. Moreover, activity of the catalyst was dramatically improved without loss of selectivity in biphasic media; with a toluene/alkaline water system the highest TOF for benzoic acid synthesis was close to 5200 h−1, selectivity being 98%.
U2 - 10.1016/j.apcata.2014.08.003
DO - 10.1016/j.apcata.2014.08.003
M3 - Artikel
SN - 0926-860X
VL - 485
SP - 202
EP - 206
JO - Applied Catalysis A: General
JF - Applied Catalysis A: General
ER -