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公开(公告)号:US6011182A
公开(公告)日:2000-01-04
申请号:US241300
申请日:1999-02-01
Applicant: Matthias Eiermann , Klaus Ebel , Jorg Botzem
Inventor: Matthias Eiermann , Klaus Ebel , Jorg Botzem
IPC: B01J27/182 , C07B61/00 , C07C45/52 , C07C45/65 , C07C45/66 , C07C45/67 , C07C45/82 , C07C49/587 , C07C49/603 , C07C45/48
CPC classification number: C07C45/673 , C07C45/66
Abstract: The present invention relates to a process for preparing 2-cyclo-alkenones of the formula I ##STR1## which comprises subjecting a 2-alkoxycycloalkanone and/or a 2-hydroxyalkanone ketal, in which n is an integer from 0 to 20, m is 0, 1, 2 or 3 and R is alkyl, alkylaryl, aryl, arylalkyl, alkenyl or alkynyl, to an elimination reaction in the gas phase on an acidic heterogeneous catalyst.
Abstract translation: 本发明涉及制备式I的2-环烯酮的方法,其包括使2-烷氧基环烷酮和/或2-羟基烷酮缩酮化合物,其中n为0至20的整数,m为0,1 ,2或3,R是烷基,烷基芳基,芳基,芳基烷基,烯基或炔基,用于酸性多相催化剂上的气相中的消除反应。