Počet záznamů: 1

Acylation of Cyclohexene and 1-Methylcyclohexene Over Zeolites and Mesoporous Molecular Sieves

  1. 1.
    0326729 - UFCH-W 2010 RIV NL eng J - Článek v odborném periodiku
    Vitvarová, Dana - Voláková, Martina - Vlk, Josef - Čejka, Jiří
    Acylation of Cyclohexene and 1-Methylcyclohexene Over Zeolites and Mesoporous Molecular Sieves.
    Topics in Catalysis. Roč. 52, 6-7 (2009), s. 618-626 ISSN 1022-5528
    Grant CEP: GA ČR GA104/07/0383; GA MPO FT-TA5/005; GA ČR GD203/08/H032
    Výzkumný záměr: CEZ:AV0Z40400503
    Klíčová slova: acylation * cyclohexene * 1-methylcyclohexene * molecular sieves
    Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie
    Impakt faktor: 2.379, rok: 2009

    Liquid phase Friedel-Crafts acylation of cyclohexene and 1-methylcyclohexene was investigated over zeolites and mesoporous molecular sieves. The effect of the structure and concentration and type of active sites on the conversion and selectivity of cyclohexene and 1-methylcyclohexene was investigated. In addition, the effect of the chain length of acylating agent was studied. Catalytic experiments were carried out at temperature 80 °C and at atmospheric pressure. The highest conversion was reached over zeolite Beta with Si/Al ratio 37.5 (cyclohexene conversion 78.7%, 1-methylcyclohexene conversion 54.1%). It was found that with increasing chain length of the acylating agent cyclohexene as well as 1-methylcyclohexene conversions decrease. No direct relationship between the conversion of cyclohexene or 1-methylcyclohexene and the concentration of Lewis acid sites was found.
    Trvalý link: http://hdl.handle.net/11104/0173740