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公开(公告)号:US12139452B2
公开(公告)日:2024-11-12
申请号:US17603184
申请日:2020-04-03
Applicant: DSM IP ASSETS B.V.
Inventor: Werner Bonrath , Marc-André Mueller , Bettina Wuestenberg , Viktor Zimmermann
IPC: C07C403/08 , C07C403/14
Abstract: The present invention relates to a new process for the production of retinal or hydrogenated form of retinal.
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公开(公告)号:US09957228B2
公开(公告)日:2018-05-01
申请号:US15518097
申请日:2015-10-15
Applicant: DSM IP ASSETS B.V.
Inventor: Werner Bonrath , Jan Schuetz , Thomas Netscher , Bettina Wuestenberg
IPC: C07C45/00 , C07C403/14 , C07C45/51 , C07C47/21 , C07C47/225 , C07C13/20
CPC classification number: C07C403/14 , C07C13/20 , C07C45/512 , C07C47/21 , C07C47/225 , C07C403/08 , C07C2523/00 , C07C2601/16
Abstract: The present invention relates to a new method to produce 7,8-dihydro-C15-aldehyde.
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公开(公告)号:US20150031910A1
公开(公告)日:2015-01-29
申请号:US14368914
申请日:2012-12-14
Applicant: DSM IP ASSETS B.V.
Inventor: Werner Bonrath , Bettina Wuestenberg , Thomas Netscher , Jan Schuetz
IPC: C07C67/29
CPC classification number: C07C67/29 , C07C403/12 , C07C2601/16
Abstract: The present invention relates to a process of production of a compound, which is useful as an intermediate (building block) in organic synthesis, especially in the synthesis of vitamin A or β-carotene and derivatives thereof, e.g. canthaxanthin, astax-anthin or zeaxanthin.
Abstract translation: 本发明涉及一种化合物的制备方法,其可用作有机合成中的中间体(结构单元),特别是合成维生素A或其组合物 - 胡萝卜素及其衍生物。 角黄素,阿斯泰沙星或玉米黄质。
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公开(公告)号:US09908847B2
公开(公告)日:2018-03-06
申请号:US15518383
申请日:2015-10-15
Applicant: DSM IP ASSETS B.V.
Inventor: Werner Bonrath , Jan Schuetz , Thomas Netscher , Bettina Wuestenberg
IPC: C07C45/00 , C07C403/00 , C07C403/14
CPC classification number: C07C403/14 , C07C29/42 , C07C45/512 , C07C2601/16 , C07C33/14 , C07C47/225
Abstract: The present invention relates to an improved method for producing specific α,β-unsaturated aldehydes.
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公开(公告)号:US09040742B2
公开(公告)日:2015-05-26
申请号:US14368914
申请日:2012-12-14
Applicant: DSM IP ASSETS B.V.
Inventor: Werner Bonrath , Bettina Wuestenberg , Thomas Netscher , Jan Schuetz
CPC classification number: C07C67/29 , C07C403/12 , C07C2601/16
Abstract: The present invention relates to a process of production of a compound, which is useful as an intermediate (building block) in organic synthesis, especially in the synthesis of vitamin A or β-carotene and derivatives thereof, e.g. canthaxanthin, astaxanthin or zeaxanthin.
Abstract translation: 本发明涉及一种化合物的制备方法,其可用作有机合成中的中间体(结构单元),特别是合成维生素A或其组合物 - 胡萝卜素及其衍生物。 角黄素,虾青素或玉米黄质。
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公开(公告)号:US12258311B2
公开(公告)日:2025-03-25
申请号:US17788237
申请日:2020-12-15
Applicant: DSM IP Assets B.V.
Inventor: Werner Bonrath , Marc-André Mueller , Bettina Wuestenberg , Viktor Zimmermann
IPC: C07C47/225 , C07C45/00
Abstract: The present invention relates to a new compound and the dehydrogenation of that compound to produce retinal.
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公开(公告)号:US11958797B2
公开(公告)日:2024-04-16
申请号:US17603177
申请日:2020-04-03
Applicant: DSM IP ASSETS B.V.
Inventor: Fabrice Aquino , Werner Bonrath , Marc-André Mueller , Bettina Wuestenberg
CPC classification number: C07C49/21 , C07C45/67 , C07C2601/16
Abstract: The application relates to a process for the preparation of a compound of formula (II) by cyclisation of a polyene of formula (I), and to an intermediate of formula (III). The obtained compounds are useful intermediates in the preparation of specific isoprenoids, preferably in the production of vitamin A and derivatives of vitamin A.
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公开(公告)号:US11851402B2
公开(公告)日:2023-12-26
申请号:US17603114
申请日:2020-04-03
Applicant: DSM IP ASSETS B.V.
Inventor: Werner Bonrath , Marc-André Mueller , Bettina Wuestenberg
IPC: C07C5/327 , C07C67/44 , C07C67/02 , C07C69/145 , C07C69/24 , C07C5/44 , C07C403/14
CPC classification number: C07C5/327 , C07C5/44 , C07C67/02 , C07C67/44 , C07C69/145 , C07C69/24 , C07C403/14 , C07C2601/16
Abstract: The present invention relates to a new dehydrogenation process of specific compounds.
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公开(公告)号:US10029970B2
公开(公告)日:2018-07-24
申请号:US15518355
申请日:2015-10-15
Applicant: DSM IP ASSETS B.V.
Inventor: Werner Bonrath , Thomas Netscher , Jan Schuetz , Bettina Wuestenberg
IPC: C07C45/00 , C07C403/00 , C07C45/51 , C07C47/225 , C07C11/12 , C07C5/23
Abstract: The present invention relates to an improved method for producing specific α, β-unsaturated aldehydes.
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