(19)
(11) EP 4 680 600 A1

(12)

(43) Date of publication:
21.01.2026 Bulletin 2026/04

(21) Application number: 23926799.0

(22) Date of filing: 16.03.2023
(51) International Patent Classification (IPC): 
C07D 307/24(2006.01)
C07C 51/285(2006.01)
(52) Cooperative Patent Classification (CPC):
C07D 307/24
(86) International application number:
PCT/CN2023/081816
(87) International publication number:
WO 2024/187444 (19.09.2024 Gazette 2024/38)
(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:
KH MA MD TN

(71) Applicant: SPECIALTY OPERATIONS FRANCE
69003 Lyon (FR)

(72) Inventors:
  • ZHOU, Wenjuan
    Shanghai 201108 (CN)
  • BACK, Olivier
    69003 Lyon (FR)
  • STREIFF, Stephane
    69003 Lyon (FR)

(74) Representative: Valentino, Cédric 
Specialty Operations France Intellectual Assets Management (IAM) 85 rue des Frères Perret RIC Lyon BP62
69192 Saint-Fons
69192 Saint-Fons (FR)

   


(54) METHOD FOR PRODUCING TETRAHYDROFURAN-2-CARBOXYLIC ACID