Formation of cyclopentanone from dimethyl hexanedioate over CeO2
2006; Elsevier BV; Volume: 312; Linguagem: Inglês
10.1016/j.apcata.2006.06.046
ISSN1873-3875
AutoresOsamu Nagashima, Shigeharu Sato, R. M. Takahashi, Toshiaki Sodesawa, Takaya Akashi,
Tópico(s)Asymmetric Hydrogenation and Catalysis
ResumoCycloketonization of dimethyl hexanedioate into cyclopentanone was investigated over pure CeO2 at a temperature between 350 and 475 °C. The conversion of the diester increased with raising the reaction temperature. The selectivity to cyclopentanone, however, decreased whenever the conversion increased. The major by-product other than methanol was 2-methylcyclopentanone. It was found that methylation of cyclopentanone with methanol into 2-methylcyclopentanone proceeded over CeO2. The decrease in the selectivity to cyclopentanone at high conversion was mainly caused by a consecutive reaction of cyclopentanone into 2-methylcyclopentanone due to alkylation with methanol.
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