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US 6,388,140 B2Granted
Method and producing cyclododecanone compound
AssigneeUbe Industries, Ltd.
InventorsRyoji Sugise, Shuji Tanaka, Kohichi Kashiwagi, Takashi Doi, Masayuki Nishio, Sadao Niida, Tsunao Matsuura
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Abstract
A cyclododecanone compound is produced in a high reaction rate, with a high conversion of the starting compound, and with a high selectivity to and a high yield of the target compound by isomerizing an epoxycyclododecane compound in the presence of a catalyst comprising lithium bromide and/or lithium iodide, without using a solvent or in a non-polar solvent, in an inert gas atmosphere, while substantially no polymeric compounds having a high boiling temperature is produced.
Claims8
A method of producing a cyclododecanone compound comprising
- isomerizing an epoxycyclododecane compound in the presence of a catalyst comprising at least one member selected from the group consisting of lithium bromide and lithium iodide, without using a solvent or in a non-polar solvent, in an inert gas atmosphere.
Dependencies are inferred from the claim text.