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公开(公告)号：US20200181052A1
公开(公告)日：2020-06-11
申请号：US16642188
申请日：2017-08-26
Applicant: SYMRISE AG
Inventor： Anna KULIK , Reinhard ECKELT , Angela KÖCKRITZ , Katja NEUBAUER
IPC: C07C45/29
Abstract: The invention relates to a method for producing terpene aldehydes and terpene ketones by oxidatively dehydrogenating the corresponding terpene alcohols, comprising or consisting of the following steps: (a) providing terpene alcohols or terpene-alcohol-containing reactants; (b) bringing the starting substances from step (a) in contact with a heterogeneous ruthenium catalyst; (c) heating the mixture from step (b) to at least 150° C. in the presence of oxygen; optionally (d) separating the terpene aldehydes or terpene ketones from the obtained reaction mixture.
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公开(公告)号：US20230144944A1
公开(公告)日：2023-05-11
申请号：US17799506
申请日：2020-02-18
Applicant: SYMRISE AG
Inventor： Nikolas BUGDAHN , Angela Köckritz , Elka KRALEVA , Reinhard ECKELT
CPC classification number: C07C5/31 , B01J29/7038 , C07C2529/70
Abstract: What is proposed is a continuous process for producing limonene which has the feature that beta-pinene or beta-pinene-containing starting materials are isomerized in a trickle-bed reactor in the presence of acid catalysts.
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公开(公告)号：US20180022683A1
公开(公告)日：2018-01-25
申请号：US15547435
申请日：2016-01-13
Applicant: SYMRISE AG
Inventor： Atia HANAN , Reinhard ECKELT , Angela KOECKRITZ , Johannes PANTEN , Peter ESSER , Oskar KOCH
IPC: C07C67/293 , C07C69/12
CPC classification number: C07C67/293 , C07C45/69 , C07C49/497 , C07C49/503 , C07C51/353 , C07C68/00 , C07C69/12 , C07C303/24 , C07C2601/18 , C07C2601/20 , C07F9/091 , Y02P20/582 , C07C69/14 , C07C69/96
Abstract: The present invention relates to a method for producing a substituted alkyl cycloalkanone of formula (I), having the alkylation of a cycloalkanone of formula (II) with an alkene derivative of formula (III) in the presence of a metal oxide, where n is 2 to 20, m is 0 to 10, and R is a functional group.
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