EP 4077301 A1 20221026 - FORMATION OF ALPHA TOCOPHEROL FROM 2,3,6-TRIMETHYLPHENOL
Title (en)
FORMATION OF ALPHA TOCOPHEROL FROM 2,3,6-TRIMETHYLPHENOL
Title (de)
BILDUNG VON ALPHA-TOCOPHEROL AUS 2,3,6-TRIMETHYLPHENOL
Title (fr)
FORMATION D'ALPHA-TOCOPHÉROL À PARTIR DE 2,3,6-TRIMÉTHYLPHÉNOL
Publication
Application
Priority
- EP 19217787 A 20191219
- EP 2020085943 W 20201214
Abstract (en)
[origin: WO2021122439A1] The present invention relates to the formation of α-tocopherol from 2,3,6- tri¬methyl¬phenol comprising the steps a) the oxidation of 2,3,6-trimethylphenol to 2,3,5-trimethylquinone. b) the reduction of 2,3,5-trimethylquinone to 2,3,5-trimethylhydroquinone c) the condensation of 2,3,5-trimethylhydroquinone and isophytol or a phytol derivative in such a manner that all reaction steps a), b) and c) are performed in cyclic alkylene carbonate solvent.
IPC 8 full level
C07D 311/72 (2006.01); C07D 317/36 (2006.01); C07D 317/38 (2006.01)
CPC (source: EP)
C07D 311/72 (2013.01); C07D 317/36 (2013.01); C07D 317/38 (2013.01)
Citation (search report)
See references of WO 2021122439A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2021122439 A1 20210624; CN 114901650 A 20220812; EP 4077301 A1 20221026
DOCDB simple family (application)
EP 2020085943 W 20201214; CN 202080087871 A 20201214; EP 20821237 A 20201214