EP 1456177 A1 20040915 - METHOD FOR PREPARING LACTAM
Title (en)
METHOD FOR PREPARING LACTAM
Title (de)
VERFAHREN ZUR HERSTELLUNG VON LACTAMEN
Title (fr)
PROCEDE DE PREPARATION DE LACTAME
Publication
Application
Priority
- FR 0204344 W 20021213
- FR 0116659 A 20011221
Abstract (en)
[origin: WO03053935A1] The invention concerns a method for preparing lactam by cyclizing 6-aminocaproic acid esters and amides. Said reaction is carried out in vapour phase and in the presence of a catalyst such as alumina.
IPC 1-7
IPC 8 full level
C07D 201/08 (2006.01); C07D 223/10 (2006.01)
CPC (source: EP)
C07D 201/08 (2013.01); C07D 223/10 (2013.01); Y02P 20/52 (2015.11)
Citation (search report)
See references of WO 03053935A1
Citation (examination)
W.H.CAROTHERS AND G.J.BERCHET: "Studies on Polymerization and Ring Formation, VIII. Amides from epsilon-Aminocaproic Acid", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 52, 1930, pages 5289 - 5291, XP001028951
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 SI SK TR
DOCDB simple family (publication)
WO 03053935 A1 20030703; AU 2002364448 A1 20030709; CN 102050773 A 20110511; CN 1615298 A 20050511; EP 1456177 A1 20040915; FR 2833946 A1 20030627; FR 2833946 B1 20050805; RU 2004122428 A 20050510; RU 2275358 C2 20060427; TW 200302219 A 20030801; TW I332498 B 20101101
DOCDB simple family (application)
FR 0204344 W 20021213; AU 2002364448 A 20021213; CN 02827173 A 20021213; CN 201010297878 A 20021213; EP 02799811 A 20021213; FR 0116659 A 20011221; RU 2004122428 A 20021213; TW 91136805 A 20021220