EP 2768795 A1 20140827 - METHOD FOR THE SYNTHESIS OF CITRIC ACID ESTERS
Title (en)
METHOD FOR THE SYNTHESIS OF CITRIC ACID ESTERS
Title (de)
VERFAHREN ZUR SYNTHESE VON CITRONENSÄUREESTERN
Title (fr)
PROCÉDÉ DE SYNTHÈSE D'ESTERS DE L'ACIDE CITRIQUE
Publication
Application
Priority
- DE 102011054602 A 20111019
- EP 2012070501 W 20121016
Abstract (en)
[origin: WO2013057110A1] The present invention discloses a targeted synthesis method for the synthesis of asymmetric monoesters and/or symmetrical diesters of citric acid through acidic esterification by using boric acid or a boronic acid as a catalyst. The boric/boronic acid simultaneously acts as a catalyst, as well as a "protecting group" for the tertiary carboxylic acid, and therefore specifically only the asymmetric monoesters or symmetrical diesters are created.
IPC 8 full level
C07C 67/08 (2006.01); C07C 69/704 (2006.01)
CPC (source: EP)
C07C 67/08 (2013.01); Y02P 20/55 (2015.11)
C-Set (source: EP)
Citation (search report)
See references of WO 2013057110A1
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)
DE 102011054602 A1 20130425; EP 2768795 A1 20140827; WO 2013057110 A1 20130425
DOCDB simple family (application)
DE 102011054602 A 20111019; EP 12775233 A 20121016; EP 2012070501 W 20121016