公开(公告)号：US20220194891A1

公开(公告)日：2022-06-23

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: C07C69/24 ,  C07C69/145 ,  C07C67/02 ,  C07C67/44

Abstract: The present invention relates to a new dehydrogenation process of specific compounds.

公开(公告)号：US20190300462A1

公开(公告)日：2019-10-03

申请号：US16300944

申请日：2017-05-11

Applicant: DSM IP ASSETS B.V.

Inventor： Matthias BELLER ,  Werner BONRATH ,  Johannes Gerardus DE VRIES ,  Yuting FAN ,  Sandra HÜBNER ,  Laurent LEFORT ,  Jonathan Alan MEDLOCK ,  Pim PUYLAERT ,  Richard VAN HECK

IPC: C07C29/145 ,  B01J31/24 ,  B01J31/22 ,  C07D307/83

Abstract: The present invention relates to a selective reduction of specific aldehydes and ketones to their corresponding alcohols.

公开(公告)号：US20190039980A1

公开(公告)日：2019-02-07

申请号：US15757685

申请日：2016-09-16

Applicant: DSM IP Assets B.V.

Inventor： Werner BONRATH ,  Raphael BEUMER ,  Jonathan Alan MEDLOCK

IPC: C07C29/141 ,  C07C29/14 ,  B01J31/02 ,  B01J31/22 ,  C07C45/51

CPC classification number: C07C29/141 ,  B01J31/0275 ,  B01J31/2295 ,  C07C29/14 ,  C07C45/512 ,  C07C47/21 ,  C07C33/02

Abstract: The present invention relates to an improved way for the production of farnesol.

公开(公告)号：US20180065990A1

公开(公告)日：2018-03-08

申请号：US15697723

申请日：2017-09-07

Applicant: DSM IP ASSETS B.V.

Inventor： Werner BONRATH ,  Kun PENG ,  Lei ZHANG ,  Zhibin ZHU

IPC: C07D513/04

CPC classification number: C07D513/04 ,  C07D495/04

Abstract: The present invention provides a new process for the preparation of a substituted imidazothiazolone compound. The process of the present invention uses a fluoride-free Lewis acid which is cheap and friendly to environment, and provide high selectivity and yield.

公开(公告)号：US20170313654A1

公开(公告)日：2017-11-02

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: C07C403/14 ,  C07C47/225 ,  C07C45/51 ,  C07C47/21 ,  C07C13/20 ,  C07C2601/16

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.

公开(公告)号：US20240308948A1

公开(公告)日：2024-09-19

申请号：US18264160

申请日：2022-02-07

Applicant: DSM IP ASSETS B.V.

Inventor： Fabrice AQUINO ,  Werner BONRATH ,  Francesco PACE

IPC: C07C45/51 ,  B01J31/02

CPC classification number: C07C45/513 ,  B01J31/0285

Abstract: The present invention relates to the manufacture of gamma, delta-unsaturated ketones from tertiary vinyl carbinols and vinylic ethers or ketals using an organic tertiary or quaternary ammonium salt as catalyst.

公开(公告)号：US20240228454A1

公开(公告)日：2024-07-11

申请号：US18557648

申请日：2022-04-26

Applicant: DSM IP ASSETS B.V.

Inventor： Werner BONRATH ,  Rolf KUENZI

IPC: C07D311/72 ,  C07D311/92

CPC classification number: C07D311/72 ,  C07D311/92

Abstract: The present invention relates to the formation of compound of the formula (I) by a ring closure reaction of the compound of the formula (II) in the presence of a base in a two-phase system. It has been found that this reaction is very efficient and offers for example an efficient pathway for the synthesis of 3,4-dehydro-α-tocotrienol respectively a-tocotrienol and a-tocopherol.

公开(公告)号：US20240124380A1

公开(公告)日：2024-04-18

申请号：US18264360

申请日：2022-02-07

Applicant: DSM IP Assets B.V.

Inventor： Fabrice AQUINO ,  Werner BONRATH ,  Francesco PACE

IPC: C07C45/45

CPC classification number: C07C45/45 ,  C07C2527/24

Abstract: The present invention relates to a process of manufacturing of allene ketone using specific ammonium (thio)sulfates or hydrogen (thio)sulfates as catalyst. The reaction provides the allene ketone in high yields and selectivities.

公开(公告)号：US20230416188A1

公开(公告)日：2023-12-28

申请号：US18253175

申请日：2021-11-09

Applicant: DSM IP ASSETS B.V.

Inventor： Werner BONRATH ,  Alexander GAA ,  Ralph HAERTER

IPC: C07C231/02

CPC classification number: C07C231/02 ,  C07B2200/07

Abstract: The present invention relates to a process for producing L-phenylalanine amide.

公开(公告)号：US20230416178A1

公开(公告)日：2023-12-28

申请号：US18251608

申请日：2021-11-08

Applicant: DSM IP ASSETS B.V.

Inventor： Stephan ACKERMANN-MAURER ,  Werner BONRATH ,  Ulla LETINOIS ,  Thomas NETSCHER ,  Jan SCHUETZ

IPC: C07C37/14

CPC classification number: C07C37/14

Abstract: The present invention relates to the synthesis of p-alkylphenols and of 2,6-dimethyl-4-alkyl phenol from 2-alkylfurans with acetylene in the presence of a gold(I) complex as well as to 2,3,6 trimethylhydroquinone.