EP 1549610 A2 20050706 - METHOD FOR CATALYST-FREE PRODUCTION OF CYANOPHENOLS FROM METHOXYBENZONITRILES
Title (en)
METHOD FOR CATALYST-FREE PRODUCTION OF CYANOPHENOLS FROM METHOXYBENZONITRILES
Title (de)
VERFAHREN ZUR KATALYSATOR-FREIEN HERSTELLUNG VON CYANOPHENOLEN AUS METHOXYBENZONITRILEN
Title (fr)
PROCEDE DE PRODUCTION SANS CATALYSEUR DE CYANOPHENOLS A PARTIR DE METHOXYBENZONITRILES
Publication
Application
Priority
- DE 10242080 A 20020911
- EP 0309818 W 20030904
Abstract (en)
[origin: WO2004026812A2] According to the inventive method for catalyst-free production of cyanophenols from methoxybenzonitriles, substituted methoxybenzonitriles of general formula (I) are reacted with an alkali alcoholate at temperatures of 80 - 230 DEG C. The inventive method is based on simple, low-cost and easily accessible raw materials and can be carried out in technically simple conditions, enabling cyanophenols to be produced with high and partially quantitative yields with guaranteed low waste levels. Sodium methanolate is used as a preferred alkali alcoholate at preferred temperatures of 140 - 180 DEG C. The methoxybenzonitrile component can optionally be produced by ammonoxidation of a methoxytoluol of ammonia and (air-)oxygen and be directly further reacted.
IPC 1-7
IPC 8 full level
C07C 253/30 (2006.01); C07C 253/28 (2006.01); C07C 255/53 (2006.01); C07C 255/54 (2006.01)
CPC (source: EP US)
C07C 253/30 (2013.01 - EP US)
Citation (search report)
See references of WO 2004026812A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004026812 A2 20040401; WO 2004026812 A3 20040513; DE 10242080 A1 20040325; EP 1549610 A2 20050706; JP 2005538179 A 20051215; US 2006173207 A1 20060803
DOCDB simple family (application)
EP 0309818 W 20030904; DE 10242080 A 20020911; EP 03797265 A 20030904; JP 2004536980 A 20030904; US 52656805 A 20050304