Main > ORGANIC CHEMICALS > Aromatics > Halogen-Fluorine Exchange Reaction > Catalyst > Amidophosphonium Salt. Compn

Product DE. A. No. 1

PATENT ASSIGNEE'S COUNTRY Germany
UPDATE 08.00
PATENT ASSIGNEE This data is not available for free
PATENT CLAIMS Catalyst for halogen-F exchange reactions (HALEX) on aromatics, consisting of mixt of
- Amidophosphonium salt of formula
[(AB)N][(CD)N][(EF)N][(GH)N]P Cation . B- (anion); where
A-H are independently of one another, identical or different
& are each straight-chain or branched 1-12C alkyl or alke
nyl, 4-8C cycloalkyl, 7-12C aralkyl, or A-H are, independen
tly of one another, identical or different & are in each case
connected to one another either directly or via O or N-I to
form a ring having 3-7 ring atoms, I is 1-4C alkyl & B- is a
monovalent acid anion or the equivalent of a polyvalent
acid anion
- Plus at least one compd selected from: Quat. ammonium
compd., Quat. phosphonium compd & Crown ether
PATENT PHOTOCOPY Available on request

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