公开(公告)号：US11274071B2

公开(公告)日：2022-03-15

申请号：US16954671

申请日：2018-12-11

Applicant: DSM IP ASSETS B.V.

Inventor： Marcel Joray ,  René Tobias Stemmler

IPC: C07C45/65 ,  C07C67/347

Abstract: The present invention relates to the manufacturing of a process of alkyl 2-acetyl-5,9,13-trimethyltetradeca-4,8,12-trienoates and alkyl 2-acetyl-9,13-di-methyl-5-methylenetetradeca-8,12-dienoate as well as 6,10,14-trimethylpenta-deca-5,9,13-trien-2-one and 10,14-dimethyl-6-methylenepentadeca-9,13-dien-2-5 one and 6,10,14-trimethylpentadecan-2-one.

公开(公告)号：US11078178B2

公开(公告)日：2021-08-03

申请号：US16642546

申请日：2018-09-04

Applicant: DSM IP Assets B.V.

Inventor： Raphael Beumer ,  Werner Bonrath ,  Jan-Marc Delpho ,  Marcel Joray ,  Jonathan Alan Medlock ,  Thomas Netscher ,  Domenico Soriano ,  René Tobias Stemmler

IPC: C07D311/72 ,  C07C29/76 ,  C07C49/04 ,  C07C33/00 ,  C07C29/56

Abstract: The present invention relates to novel compounds which are particularly useful for the synthesis of novel chromanol derivatives. These compounds have interesting properties. Particularly, the novel chromanol derivatives have interesting antioxidant properties as well as flavours and fragrances.