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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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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: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:US11370738B2
公开(公告)日:2022-06-28
申请号:US17046483
申请日:2019-04-08
Applicant: DSM IP ASSETS B.V.
Inventor: Jan Schuetz
IPC: C07C45/58 , C07C47/225
Abstract: The present invention relates to an improved way to produce 2-methyl-4-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2-butenal and derivatives thereof.
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公开(公告)号:US10316055B2
公开(公告)日:2019-06-11
申请号:US15774697
申请日:2016-11-28
Applicant: DSM IP Assets B.V.
Inventor: Jan Schuetz , Ralph Waechter
Abstract: The present invention relates to a method of purification of compound of formula (I) which comprises the step of crystallization of compound of formula (I) from a composition comprising the compound of formula (I) and the compound of formula (II) and a specific solvent system containing ethanol, 1-propanol, 2-propanol, 2-methyl-1-propanol, 1-butanol or 2-butanol.
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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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