公开(公告)号：US11724996B2

公开(公告)日：2023-08-15

申请号：US17306886

申请日：2021-05-03

Applicant: DSM IP Assets B.V.

Inventor： Ulla Letinois ,  Thomas Netscher ,  August Ruettimann

IPC: C07D311/72 ,  C07C45/29 ,  C07C45/61 ,  C07D311/22

CPC classification number: C07D311/72 ,  C07C45/29 ,  C07C45/298 ,  C07C45/61 ,  C07D311/22

Abstract: The present invention relates to a novel synthetic pathway for alpha-tocopherol. The invention discloses different reactions yielding some new intermediates in a very high yield and stereoselectivity.