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公开(公告)号:US5008479A
公开(公告)日:1991-04-16
申请号:US375860
申请日:1989-07-05
申请人: Takafumi Abe , Seiji Uchiyama , Takahiro Ojima , Koichi Kida
发明人: Takafumi Abe , Seiji Uchiyama , Takahiro Ojima , Koichi Kida
CPC分类号: C07C45/46 , C07C1/22 , C07C1/24 , C07C15/24 , C07C45/49 , C07C5/412 , C07C5/417 , C07C2521/04 , C07C2523/04 , C07C2523/26 , Y02P20/582
摘要: A process for production of 2,6-dimethylnaphthalene is disclosed, comprising the steps: (1) an acylation step where p-tolyl sec-butyl ketone is produced from toluene, n-butene and carbon monoxide: (2) a hydrogenation step where the carbonyl group of the p-tolyl sec-butyl ketone is hydrogenated: and (3) a dehydrogenation and cyclization step where the hydrogenated product obtained above is subjected to dehydrogenation and cyclization to produce the desired 2,6-dimethylnaphthalene. The process enables efficiently producing a high quality or high purity 2,6-dimethylnaphthalene.