EP 1436261 A1 20040714 - METHOD FOR PREPARING N-(OMEGA-BROMOALKYL)PHTHALIMIDES
Title (en)
METHOD FOR PREPARING N-(OMEGA-BROMOALKYL)PHTHALIMIDES
Title (de)
VERFAHREN ZUR HERSTELLUNG VON N-(OMEGA-BROMOALKYL)PHTHALIMIDEN
Title (fr)
PROCEDE DE PREPARATION DE N-(OMEGA-BROMOALKYL)PHTALIMIDES
Publication
Application
Priority
- FR 0203274 W 20020926
- FR 0112421 A 20010927
Abstract (en)
[origin: WO03027071A1] The invention concerns a method for preparing N-( omega -bromoalkyl)phthalimides which consists: in reacting a potassium phthalimide with an alpha , omega -dibromoalkane, without latent solvent, at a temperature ranging between 50 DEG C and 130 DEG C using a alpha , omega -dibromoalkane over potassium phthalimide mol ratio between 3 and 8, cooling the reaction medium to about 80 85 DEG C, washing with water, decanting, eliminating from the organic phase excess alpha , omega -dibromoalkane under reduced pressure, then crystallizing the N-( omega -dibromoalkyl) phthalimide with a low boiling point alcohol.
IPC 1-7
IPC 8 full level
C07D 209/48 (2006.01)
CPC (source: EP US)
C07D 209/48 (2013.01 - EP US)
Citation (search report)
See references of WO 03027071A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
WO 03027071 A1 20030403; EP 1436261 A1 20040714; FR 2830011 A1 20030328; US 2004176613 A1 20040909
DOCDB simple family (application)
FR 0203274 W 20020926; EP 02783212 A 20020926; FR 0112421 A 20010927; US 49088704 A 20040326