PROCESS FOR PREPARATION OF CYCLODODECANONE

In the process for producing a cyclododecanone by iscmerizing an epoxycyclododecane-containing starting material in the presence of an isomerization reaction catalyst containing lithium bromide and/or lithium iodide, in order to perform the reaction with high efficiency (high reaction rate) and high...

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Main Authors SUGISE, RYOJI, DOI, TAKASHI, MATSUURA, TSUNAO, TANAKA, SHUJI, NISHIO, MASAYUKI, NIIDA, SADAO
Format Patent
LanguageEnglish
French
German
Published 30.12.2009
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:In the process for producing a cyclododecanone by iscmerizing an epoxycyclododecane-containing starting material in the presence of an isomerization reaction catalyst containing lithium bromide and/or lithium iodide, in order to perform the reaction with high efficiency (high reaction rate) and high selectivity and stably produce a high-purity cyclododecanone in industry while maintaining a high-level reaction rate, the epoxycyclododecane-containing starting material is produced by contacting an epoxycyclododecadiene with hydrogen in the presence of a hydrogen-reduction catalyst and has a content of the hydroxyl group-containing cyclododecane compounds contained in the epoxycyclododecane-containing starting material controlled to 5 mol% or less.
Bibliography:Application Number: EP20020758826