Catalytic ketonization over oxide catalysts. Part VIII. Synthesis of cycloalkanone in cycloketonization of various dialkyl alkanedioates was written by Glinski, Marek;Kaszubski, Michal. And the article was included in Reaction Kinetics and Catalysis Letters in 2004.SDS of cas: 143050-66-2 The following contents are mentioned in the article:
Activity of pure Al2O3 has been studied in cycloketonization of title compounds of general formula (CH2)n(COOR)2, where n = 4, 5, 6, 7, 8 and 10 and R = Et, s-Bu and t-Bu at the temperature range 598-723 K in a flow system. The yields of cycloalkanones strongly depend on the size of the ring formed, the structure of alkyl group in ester mol. and on the reaction temperature Cyclopentanone, cyclohexanone and cycloheptanone were obtained with yields 50-60% from the appropriate di-Et esters. The only low yields (<8%) of cyclooctanone, cyclononane and cycloundecanone were achieved. An increase in the order of the ester alkyl group leads in some cases to higher yields of ketones – di-t-Bu hexanedioate yielded 88% of cyclopentanone. This study involved multiple reactions and reactants, such as Di-tert-butyl decanedioate (cas: 143050-66-2SDS of cas: 143050-66-2).
Di-tert-butyl decanedioate (cas: 143050-66-2) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.SDS of cas: 143050-66-2
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics