EP 0993435 A1 20000419 - USE OF AN ANILINE DEPLETED IN ELECTRON TO RELEASE HYDROCHLORIC ACID PRESENT IN A REACTION MIXTURE AND METHOD FOR DISPLACING, AT LEAST PARTIALLY, AN ANILINE FROM ITS CHLORHYDRATE
Title (en)
USE OF AN ANILINE DEPLETED IN ELECTRON TO RELEASE HYDROCHLORIC ACID PRESENT IN A REACTION MIXTURE AND METHOD FOR DISPLACING, AT LEAST PARTIALLY, AN ANILINE FROM ITS CHLORHYDRATE
Title (de)
VERWENDUNG EINES ELEKTRONENARMEN ANILINDERIVATES ZUR FREISETZUNG VON SALZSÄURE AUS EINER REAKTIONSMISCHUNG UND METHODE ZUR, ZUMINDEST TEILWEISEN, FREISETZUNG EINES ANILINES AUS SEINEM CHLORHYDRAT
Title (fr)
UTILISATION D'ANILINE APPAUVRIE EN ELECTRON POUR LIBERER DE L'ACIDE CHLORHYDRIQUE PRESENT DANS UN MELANGE REACTIONNEL ET PROCEDE POUR DEPLACER, AU MOINS PARTIELLEMENT, UNE ANILINE DE SON CHLORHYDRATE
Publication
Application
Priority
- FR 9801334 W 19980624
- FR 9707872 A 19970624
Abstract (en)
[origin: FR2764886A1] The invention concerns a method for displacing, at least partially, an aniline from its chlorhydrate, characterised in that said aniline is selected among anilines whereof the conjugate acid has a pKa not more than 6 and in that it consists in a step wherein it is subjected at a temperature not less than about 50 DEG C, advantageously about 70 DEG C to a reaction medium containing said chlorhydrate at least partially dissolved in a weakly polar solvent. The invention is applicable to organic synthesis.
IPC 1-7
IPC 8 full level
C07C 209/86 (2006.01); C07C 211/52 (2006.01); C07C 269/04 (2006.01); C07C 269/08 (2006.01); C07C 271/04 (2006.01)
CPC (source: EP US)
C07C 209/86 (2013.01 - EP US); C07C 269/08 (2013.01 - EP US)
Citation (search report)
See references of WO 9858900A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
FR 2764886 A1 19981224; FR 2764886 B1 20020906; AU 8343498 A 19990104; CN 1261344 A 20000726; EP 0993435 A1 20000419; JP 2002504923 A 20020212; US 6225502 B1 20010501; WO 9858900 A1 19981230
DOCDB simple family (application)
FR 9707872 A 19970624; AU 8343498 A 19980624; CN 98806455 A 19980624; EP 98933706 A 19980624; FR 9801334 W 19980624; JP 50391899 A 19980624; US 44571799 A 19991209