Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Aldol Condensation of Cyclopentanone with Valeraldehyde Over Metal Oxides. / Mäki-Arvela, Päivi; Shcherban, Nataliya; Lozachmeur, Chloé и др.
в: Catalysis Letters, Том 149, № 5, 01.05.2019, стр. 1383-1395.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
}
TY - JOUR
T1 - Aldol Condensation of Cyclopentanone with Valeraldehyde Over Metal Oxides
AU - Mäki-Arvela, Päivi
AU - Shcherban, Nataliya
AU - Lozachmeur, Chloé
AU - Eränen, Kari
AU - Aho, Atte
AU - Smeds, Annika
AU - Kumar, Narendra
AU - Peltonen, Janne
AU - Peurla, Markus
AU - Russo, Vincenzo
AU - Volcho, Konstantin P.
AU - Murzin, Dmitry Yu
N1 - Publisher Copyright: © 2019, The Author(s).
PY - 2019/5/1
Y1 - 2019/5/1
N2 - Kinetics of the cross aldol condensation of valeraldehyde with cyclopentanone was investigated in a batch reactor under atmospheric pressure at 130 °C using heterogeneous metal modified oxides, such as CeO 2 –MgO, FeO–MgO, FeO–CaO as well as pristine CaO as catalysts. The catalysts were prepared either by evaporation impregnation or deposition precipitation methods and characterized by XRD, TEM, SEM, nitrogen adsorption, ammonia and CO 2 TPD. The results revealed that an optimum amount of strong basic sites gives the highest ratio between cross condensation and self-condensation products of valeraldehyde. The highest yield of the desired product 2-pentylidenecyclopentanone (66%) was obtained with FeO–MgO prepared by the deposition precipitation methods. Graphical Abstract: Cross-condensation of valeraldehyde with cyclopentanone was investigated over heterogeneous Fe–CaO, CeO–MgO, FeO–CaO and CaO catalysts at 130 °C using cyclopentanone as a solvent and reactant. The highest yield of the desired product, 2-pentylidene-cyclopentanone, finding applications as fragrances, flavours and pharmaceuticals, was 66% obtained over FeO–MgO catalyst exhibiting both acid and basic sites.
AB - Kinetics of the cross aldol condensation of valeraldehyde with cyclopentanone was investigated in a batch reactor under atmospheric pressure at 130 °C using heterogeneous metal modified oxides, such as CeO 2 –MgO, FeO–MgO, FeO–CaO as well as pristine CaO as catalysts. The catalysts were prepared either by evaporation impregnation or deposition precipitation methods and characterized by XRD, TEM, SEM, nitrogen adsorption, ammonia and CO 2 TPD. The results revealed that an optimum amount of strong basic sites gives the highest ratio between cross condensation and self-condensation products of valeraldehyde. The highest yield of the desired product 2-pentylidenecyclopentanone (66%) was obtained with FeO–MgO prepared by the deposition precipitation methods. Graphical Abstract: Cross-condensation of valeraldehyde with cyclopentanone was investigated over heterogeneous Fe–CaO, CeO–MgO, FeO–CaO and CaO catalysts at 130 °C using cyclopentanone as a solvent and reactant. The highest yield of the desired product, 2-pentylidene-cyclopentanone, finding applications as fragrances, flavours and pharmaceuticals, was 66% obtained over FeO–MgO catalyst exhibiting both acid and basic sites.
KW - Aldol condensation
KW - Basic catalyst
KW - Valeraldehyde
KW - CYCLIC-KETONES
KW - ACID
KW - BENZALDEHYDE
KW - SELF-CONDENSATION
UR - http://www.scopus.com/inward/record.url?scp=85061912770&partnerID=8YFLogxK
U2 - 10.1007/s10562-019-02701-1
DO - 10.1007/s10562-019-02701-1
M3 - Article
AN - SCOPUS:85061912770
VL - 149
SP - 1383
EP - 1395
JO - Catalysis Letters
JF - Catalysis Letters
SN - 1011-372X
IS - 5
ER -
ID: 18617395