EP 0888295 A1 19990107 - SYNTHESIS OF ANIONIC CLEANING AGENTS
Title (en)
SYNTHESIS OF ANIONIC CLEANING AGENTS
Title (de)
SYNTHESE VON ANIONISCHEN REINIGUNGSMITTELN
Title (fr)
SYNTHESE D'AGENTS DE NETTOYAGE ANIONIQUES
Publication
Application
Priority
- GB 9601880 A 19960131
- US 9700082 W 19970106
Abstract (en)
[origin: WO9728119A1] There is provided a method of synthesis of a disulfated cleaning agent from a substituted cyclic anhydride, particularly a substituted succinic anhydride, having one or more carbon chain substituents comprising in total at least 5 carbon atoms comprising the following steps: (i) reduction of said substituted cyclic anhydride to form a diol; (ii) optionally, alkoxylation of said diol to form an alkoxylated diol; and (iii) sulfation of said diol to form a disulfate, wherein said reduction step comprises hydrogenation in the presence of a transition metal-containing hydrogenation catalyst. The hydrogenation is carried out under pressure.
IPC 1-7
IPC 8 full level
C07C 29/147 (2006.01); C07C 303/24 (2006.01); C07C 305/06 (2006.01); C11D 1/16 (2006.01); C11D 1/29 (2006.01); C11D 11/00 (2006.01); C07C 305/10 (2006.01)
CPC (source: EP)
C07C 29/147 (2013.01); C07C 303/24 (2013.01); C11D 1/16 (2013.01); C11D 1/29 (2013.01)
C-Set (source: EP)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
GB 2310206 A 19970820; GB 9601880 D0 19960403; AR 005605 A1 19990623; BR 9707225 A 19990720; CN 1214040 A 19990414; EP 0888295 A1 19990107; EP 0888295 A4 20001206; JP H11503485 A 19990326; MX 9806220 A 19981031; WO 9728119 A1 19970807
DOCDB simple family (application)
GB 9601880 A 19960131; AR P970100369 A 19970130; BR 9707225 A 19970106; CN 97193241 A 19970106; EP 97901911 A 19970106; JP 52763797 A 19970106; MX 9806220 A 19980731; US 9700082 W 19970106