EP 0326855 B1 19910410 - PROCESS FOR MANUFACTURING FLUOROMALONIC ACID AND ITS DERIVATIVES
Title (en)
PROCESS FOR MANUFACTURING FLUOROMALONIC ACID AND ITS DERIVATIVES
Publication
Application
Priority
DE 3802745 A 19880130
Abstract (en)
[origin: EP0326855A1] Process for manufacturing fluoromalonic acid and its derivatives of the formula <IMAGE> characterised in that compounds of the formula <IMAGE> where R<1> is a halogen with an atomic weight of 35 to 127, and R<2> and R<3> are identical or different and are hydroxyl, the group OX, where X is an alkali metal, alkaline earth or NH4<+> ion or a C1-C12-alkyl radical or is the group NR<4>R<5>, where R<4> and R<5> are identical or different and are hydrogen or a hydrocarbon radical containing 1 to 12 C atoms, are electrolysed at a temperature from -20 DEG C to the boiling point of the electrolyte at a current density of 1 to 600 mA/cm<2> at a cathode composed of lead, cadmium, zinc, copper, tin, zirconium, mercury, alloys of at least two of these metals or carbon in an electrolyte liquid which is composed of water and/or an organic solvent.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
C25B 3/25 (2021.01 - EP US)
Citation (examination)
DE 3607446 A1 19870910 - HOECHST AG [DE]
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0326855 A1 19890809; EP 0326855 B1 19910410; DE 3802745 A1 19890803; DE 58900078 D1 19910516; JP H01222079 A 19890905; US 4950367 A 19900821
DOCDB simple family (application)
EP 89100767 A 19890118; DE 3802745 A 19880130; DE 58900078 T 19890118; JP 1649689 A 19890127; US 30244089 A 19890126