Global Patent Index - EP 4357482 A1

EP 4357482 A1 20240424 - ELECTROCATALYTIC GENERATION OF IMINES FROM ALCOHOLS AND AMINES

Title (en)

ELECTROCATALYTIC GENERATION OF IMINES FROM ALCOHOLS AND AMINES

Title (de)

ELEKTROKATALYTISCHE HERSTELLUNG VON IMINEN AUS ALKOHOLEN UND AMINEN

Title (fr)

PRODUCTION ÉLECTROCATALYTIQUE D'IMINES À PARTIR D'ALCOOLS ET D'AMINES

Publication

EP 4357482 A1 20240424 (EN)

Application

EP 22202245 A 20221018

Priority

EP 22202245 A 20221018

Abstract (en)

A use of an acceptor-less alcohol dehydrogenation catalyst for an electrocatalytic oxidation of an alcohol with an amine, to an imine by electrocatalytic synthesis under electrochemical conditions.

IPC 8 full level

C25B 1/02 (2006.01); C25B 1/23 (2021.01); C25B 1/50 (2021.01); C25B 3/09 (2021.01); C25B 3/23 (2021.01); C25B 3/29 (2021.01)

CPC (source: EP)

C25B 1/02 (2013.01); C25B 1/23 (2021.01); C25B 1/50 (2021.01); C25B 3/09 (2021.01); C25B 3/23 (2021.01); C25B 3/29 (2021.01)

Citation (applicant)

  • WO 2022136475 A1 20220630 - OCADO INNOVATION LTD [GB]
  • MURAHASHI ET AL.: "Ruthenium-catalyzed oxidative transformation of alcohols and aldehydes to esters and lactones", J.ORG. CHEM., vol. 52, 1987, XP002758118, DOI: 10.1021/jo00228a032
  • CHANDRA ET AL.: "Recent advancement in oxidation or acceptorless dehydrogenation of alcohols to valorized products using manganese based catalysts", COORDINATION CHEMISTRY REVIEWS, vol. 411, 2020
  • PICCIRILLI ET AL., CATALYSTS, vol. 10, 2020, pages 773
  • TRINCADO ET AL., COORDINATION CHEMISTRY REVIEWS, vol. 443, 2021
  • ZHANG ET AL.: "Cobalt-catalyzed acceptorless alcohol dehydrogenation: synthesis of imines from alcohols and amines", ORG. LETT., vol. 15, 2013
  • MIDYA ET AL.: "Direct access to N-alkylated amines and imines via acceptorless dehydrogenative coupling catalyzed by a cobalt (ii)-NNN pincer complex", CATAL. SCI. TECHNOL., vol. 8, 2018
  • BOTTARO ET AL.: "In situ generated cobalt catalyst for the dehydrogenative coupling of alcohols and amines into imines", CHEMCATCHEM, vol. 11, 2019
  • HIGUCHI ET AL.: "Tunable ligand effects on ruthenium catalyst activity for selectively preparing imines or amides by dehydrogenative coupling reactions of alcohols and amines", CHEM. EUR. J., 2017
  • SINDHUJA ET AL.: "Direct synthesis of imines from primary alcohols and amines using an active ruthenium pincer complex", TETRAHEDRON LETTERS, vol. 55, 2014
  • ANGEWANDTE CHEMIE INTERNATIONAL EDITION, vol. 49, no. 40, 2010, pages 7229 - 7233
  • "Molecular Electrocatalysis for Alcohol Oxidation: Insights and Challenges for Catalyst Design", ACS APPL. ENERGY MATER., vol. 3, no. 1, 2020, pages 38 - 46

Citation (search report)

  • [AD] WO 2022136476 A1 20220630 - UNIV PARIS [FR], et al
  • [A] BOOPATHY GNANAPRAKASAM ET AL: "Direct Synthesis of Imines from Alcohols and Amines with Liberation of H2", ANGEWANDTE CHEMIE, WILEY - V C H VERLAG GMBH & CO. KGAA, DE, vol. 122, no. 8, 25 January 2010 (2010-01-25), pages 1510 - 1513, XP071348472, ISSN: 0044-8249, DOI: 10.1002/ANGE.200907018
  • [A] BUNSHO OHTANI ET AL: "Electrolytic N-Alkylation of Amines with Alcohols", CHEMISTRY LETTERS, 1 January 1986 (1986-01-01), pages 1917 - 1920, XP055167189, DOI: 10.1246/cl.1986.1917

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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4357482 A1 20240424; WO 2024083554 A2 20240425; WO 2024083554 A3 20240613; WO 2024083554 A4 20240822

DOCDB simple family (application)

EP 22202245 A 20221018; EP 2023077916 W 20231009