Patent · US Active

Synthesis of chromanol derivatives

US12103918B2 · kind B2 · utility

0Cited by

5References

18Claims

0Family size

Assignee

BASF SE

Inventors

Melanie WEINGARTEN · Ludwigshafen am Rhein, DE
Wolfgang Siegel · Schifferstadt, DE
Michael Puhl · Hirschberg, DE

Key dates

Filing date	Aug 16, 2019
Grant date	Oct 1, 2024
Priority date	—
Expiry date	Jul 14, 2041

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J37/06
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to a process for the production of chromanol derivatives, more specifically to a process for preparing a compound of the general formula (I) wherein R1, R2 and R3 independently of each other are selected from hydrogen and methyl, R4 is selected from hydrogen and C1-C6-alkanoyl, and X is selected from C1-C20-alkyl and C2-C20-alkenyl.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.