(19)
(11) EP 4 771 020 A1

(12)

(43) Date of publication:
08.07.2026 Bulletin 2026/28

(21) Application number: 24762641.9

(22) Date of filing: 28.08.2024
(51) International Patent Classification (IPC): 
C07F 7/18(2006.01)
C11B 9/00(2006.01)
 C07D 493/08(2006.01)
(52) Cooperative Patent Classification (CPC):
C07F 7/1804; C07D 493/08; C11B 9/008; C07F 7/188
(86) International application number:
PCT/EP2024/074005
(87) International publication number:
WO 2025/045913 (06.03.2025 Gazette 2025/10)
(84) Designated Contracting States:
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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
GE KH MA MD TN

(30) Priority: 31.08.2023 GB 202313239

(71) Applicant: Givaudan SA
1214 Vernier (CH)

(72) Inventors:
  • JOSET, Nathalie
    8310 Kemptthal (CH)
  • FONZO, Alessio
    8310 Kemptthal (CH)
  • LOVCHIK, Martin Alan
    8310 Kemptthal (CH)

(74) Representative: Global Patents 
Givaudan SA Grafenaustrasse 7
6300 Zug
6300 Zug (CH)

   


(54) PROCESSES FOR MAKING AMBERKETAL FROM SILYLATED HYDROXYFARNESYLACETONATE