Global Patent Index - EP 4114820 A4

EP 4114820 A4 20240117 - A METHOD FOR THE ALKYLATION OF AMINES

Title (en)

A METHOD FOR THE ALKYLATION OF AMINES

Title (de)

VERFAHREN ZUR ALKYLIERUNG VON AMINEN

Title (fr)

PROCÉDÉ D'ALKYLATION D'AMINES

Publication

EP 4114820 A4 20240117 (EN)

Application

EP 20922861 A 20200306

Priority

CN 2020078148 W 20200306

Abstract (en)

[origin: WO2021174522A1] The present invention pertains to a method for the alkylation of amines. In particular, the present invention relates to a method for preparing N, N, N', N", N"-pentamethyldiethylenetriamine by reacting diethylenetriamine with methanol in the presence of hydrogen and a metal catalyst.

IPC 8 full level

C07C 209/16 (2006.01); B01J 21/00 (2006.01); C07C 211/14 (2006.01)

CPC (source: EP)

B01J 23/72 (2013.01); B01J 23/75 (2013.01); B01J 25/00 (2013.01); C07C 209/16 (2013.01); B01J 25/02 (2013.01)

C-Set (source: EP)

C07C 209/16 + C07C 211/14

Citation (search report)

  • [XYI] JIA-MIN HUANG ET AL: "-alkylation of ethylenediamine with alcohols catalyzed by CuO-NiO/-AlO", CHEMICAL PAPERS, SP VERSITA, HEIDELBERG, vol. 66, no. 4, 3 February 2012 (2012-02-03), pages 304 - 307, XP035021878, ISSN: 1336-9075, DOI: 10.2478/S11696-012-0140-8
  • [X] T YAMAKAWA ET AL: "Alkylation of ethylenediamine with alcohols by use of Cu-based catalysts in the liquid phase", CATALYSIS COMMUNICATIONS, vol. 5, no. 6, 1 June 2004 (2004-06-01), pages 291 - 295, XP055027567, ISSN: 1566-7367, DOI: 10.1016/j.catcom.2004.03.004
  • [Y] MEHTA ASTHA ET AL: "Reinvestigating Raney nickel mediated selective alkylation of amines with alcohols via hydrogen autotransfer methodology", APPLIED CATALYSIS A: GENERAL, ELSEVIER, AMSTERDAM, NL, vol. 478, 15 April 2014 (2014-04-15), pages 241 - 251, XP028651236, ISSN: 0926-860X, DOI: 10.1016/J.APCATA.2014.04.009
  • See also references of WO 2021174522A1

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

DOCDB simple family (publication)

WO 2021174522 A1 20210910; CN 115210214 A 20221018; EP 4114820 A1 20230111; EP 4114820 A4 20240117

DOCDB simple family (application)

CN 2020078148 W 20200306; CN 202080098151 A 20200306; EP 20922861 A 20200306