EP 1456161 A1 20040915 - METHOD FOR PRODUCING DEOXYBENZOINS
Title (en)
METHOD FOR PRODUCING DEOXYBENZOINS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON DEOXYBENZOINEN
Title (fr)
PROCEDE DE PRODUCTION DE DESOXYBENZOINES
Publication
Application
Priority
- DE 10160721 A 20011211
- EP 0213883 W 20021206
Abstract (en)
[origin: DE10160721A1] The invention relates to a method for producing 1,2-diarylethanones by reacting an arylacetonitrile with an aromatic compound and by hydrolysing the ketimine compound that has been formed, at least one dialkyl ether of a monoalkylene or polyalkylene glycol, or a cyclic ether with at least two oxygen atoms being used as a solvent for the reaction. The method produces excellent yields at an ambient temperature and does not require the solvent to be dried.
[origin: DE10160721A1] Dialkyl ethers of mono- or poly-alkylene glycols or cyclic ethers with at least two oxygen atoms are used as reaction solvents in a method for the production of 1,2-diarylethanones by reaction of aryl-acetonitriles (I) with aromatic compounds (II) followed by hydrolysis of the resulting ketimine.
IPC 1-7
IPC 8 full level
C07C 45/42 (2006.01); C07B 41/06 (2006.01); C07B 61/00 (2006.01); C07C 45/00 (2006.01); C07C 45/44 (2006.01); C07C 49/747 (2006.01); C07C 49/753 (2006.01); C07C 49/83 (2006.01); C07C 49/84 (2006.01)
CPC (source: EP US)
C07C 45/00 (2013.01 - EP US); C07C 45/42 (2013.01 - EP US)
Citation (search report)
See references of WO 03053900A1
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)
DE 10160721 A1 20030618; AR 037733 A1 20041201; AU 2002358637 A1 20030709; CN 1301951 C 20070228; CN 1602289 A 20050330; EP 1456161 A1 20040915; JP 2005513118 A 20050512; JP 3886967 B2 20070228; US 2005004400 A1 20050106; US 6867331 B2 20050315; WO 03053900 A1 20030703
DOCDB simple family (application)
DE 10160721 A 20011211; AR P020104742 A 20021206; AU 2002358637 A 20021206; CN 02824844 A 20021206; EP 0213883 W 20021206; EP 02792928 A 20021206; JP 2003554617 A 20021206; US 49812604 A 20040609