EP 1784380 A1 20070516 - METHOD FOR HIGH-PURITY QUATERNARY AMMONIUM COMPOUNDS
Title (en)
METHOD FOR HIGH-PURITY QUATERNARY AMMONIUM COMPOUNDS
Title (de)
VERFAHREN ZUR HERSTELLUNG QUARTÄRER AMMONIUMVERBINDUNGEN HOHER REINHEIT
Title (fr)
PROCEDE DE PRODUCTION DE COMPOSES D'AMMONIUM QUATERNAIRES DE GRANDE PURETE
Publication
Application
Priority
- EP 2005008413 W 20050803
- DE 102004041139 A 20040824
Abstract (en)
[origin: WO2006021304A1] The invention relates to a method for producing quaternary ammonium compounds by reacting the corresponding tertiary sp<SUP>3</SUP>-hybridized amine or sp<SUP>2</SUP>-hybridized imine with dimethyl sulfite. The inventive method is characterized by carrying out the reaction (i) in the presence of a solvent selected from the group including aromatic hydrocarbons having 6 to 10 carbon atoms, symmetrical or unsymmetrical dialkyl ethers having a total of 5 to 10 carbon atoms, cycloalkane having 5 to 8 carbon atoms and C<SUB>5</SUB> to C<SUB>10</SUB> alkane; and (ii) at a temperature of 10 to 100 °C.
IPC 8 full level
C07C 209/20 (2006.01); C07C 211/43 (2006.01); C07D 213/20 (2006.01); C07D 233/54 (2006.01)
CPC (source: EP KR US)
C07C 209/20 (2013.01 - EP KR US); C07C 211/43 (2013.01 - KR); C07D 213/20 (2013.01 - KR); C07D 233/54 (2013.01 - KR)
C-Set (source: EP US)
Citation (search report)
See references of WO 2006021304A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006021304 A1 20060302; CN 101006046 A 20070725; EP 1784380 A1 20070516; JP 2008510742 A 20080410; KR 20070053783 A 20070525; US 2008033209 A1 20080207
DOCDB simple family (application)
EP 2005008413 W 20050803; CN 200580028437 A 20050803; EP 05768765 A 20050803; JP 2007528655 A 20050803; KR 20077006688 A 20070323; US 66108005 A 20050803