摘要:
Disclosed is a process for the preparation of a perfluoro organic compound, which comprises fluorinating a partially fluorinated or unfluorinated organic compound having carbon-to-fluorine bonds under mild conditions and then, contacting the resulting reaction mixture with a fluorine gas at a temperature of 110 to 180°C.
摘要:
L'invention concerne la préparation de dérivés organiques trifluoro (ou chlorodifluoro ou dichlorofluoro) méthylés. Le procédé selon l'invention consiste à réduire par voie électrochimique un composé CI x F 3-x C-Br (x = 0,1 ou 2) en présence d'un substrat électrophile non électroactif et d'un électrolyte support dans un solvant aprotique.
摘要:
A compound of the formula, wherein k is zero or an integer of 1 to 2, j is an integer of from 1 or 3, ℓ and m are each zero or an integer of from 1 to 3, and n is an integer of from 1 to 4, the rings A, B and C being optionally substituted with at least one trifluoromethyl group or tetrafluoroethyl group is prepared by reacting the perhydro compound corresponding thereto with fluorine. The compound is useful as a material capable of carrying oxygen in an aqueous emulsion for lifesaving a patient suffering from massive hermorrhage and for preserving internal organs in transplantation.
摘要:
A novel compound of the formula, wherein R denotes a lower perfluoroalkyl group, ℓ is an integer of 3 or 4, n+m is an integer of 2 or 3, provided that n may be zero, and at least one of ring A and ring B may be substituted by a lower perfluoroalkyl group, prepared by reacting the corresponding perhydro compound with fluorine is useful as a material capable of carrying oxygen in an aqueous emulsion for lifesaving a patient suffering from massive hemorrhage and for preserving internal organs in transplantation.
摘要:
A novel compound of the formula, wherein R denotes a lower perfluoroalkyl group, ℓ is an integer of 3 or 4, n+m is an integer of 2 or 3, provided that n may be zero, and at least one of ring A and ring B may be substituted by a lower perfluoroalkyl group, prepared by reacting the corresponding perhydro compound with fluorine is useful as a material capable of carrying oxygen in an aqueous emulsion for lifesaving a patient suffering from massive hemorrhage and for preserving internal organs in transplantation.
摘要:
Die Erfindung betrifft perfluorierte Sulfonsäurefluoride der allgemeinen Formel in denen X, Y und Z unabhängig voneinander für F, einen Perfluoralkylrest mit 1 - 8 C-Atomen, in dem gegebenenfalls eine oder mehrere CF 2 -Gruppen durch Sauerstoff ersetzt sein können, wobei die Sauerstoffatome durch mindestens eine CF 2 -Gruppe voneinander getrennt sind, einen gegebenenfalls perfluoralkylsubstituierten Cycloperfluoralkylrest mit 5-12 C-Atomen, in dem eine oder mehrere CF 2 -Gruppen durch Sauerstoff ersetzt sein können. X und Y gemeinsam für einen gegebenenfalls perfluoralkylsubstituierten Cycloperfluoralkylrest, in dem eine oder mehrere CF 2 -Gruppen durch Sauerstoff substituiert sein können, R f unabhängig für F oder einen Perfluoralkylrest mit 1 - 3 C-Atomen steht, und n und m für die Zahlen 0 oder 1 stehen. Die Erfindung betrifft ferner ein Verfahren zur Herstellung der genannten perfluorierten Sulfonsäurefluoride.
摘要:
A method is provided for making a perfluorinated vinyl ether having a sulfonyl fluoride end-group according to the formula FSO?2#191-(CF?2#191)?n#191-O-CF=CF?2#191, where n is 2-5, comprising the steps of: a) fluorination of: (PLEASE INSERT THE CHEMICAL FORMULA HERE AS IT APPEARS IN THE PAPER COPY) to produce FSO?2#191 (CF?2#191)?(n-1)#191 COF; b) reaction of FSO?2#191 (CF?2#191)?(n-1)#191 COF with hexafluoropropylene oxide (HFPO) to produce FSO?2#191 (CF?2#191)?(n)#191 O-CF(CF?3#191)-COF; c) reaction of FSO?2#191 (CF?2#191)?(n)#191 O-CF(CF?3#191)-COF with a salt of a metal cation M+p , where p is the valence of M, to produce (FSO?2#191 (CF?2#191)?(n)#191 O-CF(CF?3#191)-COO-)?p#191M+p; and d) thermal cracking of FSO?2#191 (CF?2#191)?(n)#191 O-CF(CF?3#191)- COO-)?p#191M+p to produce FSO?2#191 (CF?2#191)?(n)#191 O-CF=CF?2.#191
摘要:
The inventive perfluoronated cycle-containing tertiary amines (PFCTA) of general formula (1) where n=1 or 2; m=2 or 3 X represents or , at n=2 X represents are used as a basis for gas conveying emulsions. PFCTA is a group of compounds near to perfluor-N-(4-methylcyclohexyl)-piperidine with respect to the properties thereof, in particular with respect to a critical solution temperature in hexane. Said compounds are used in a mixture, thereby producing a range of compounds which exhibit gradually changing characteristics and making it possible to obtain highly uniform fluorocarbon phases of the emulsions and to increase the stability of emulsion particles which are stabilised with the aid of ethylene oxide-propylene oxide block polymers without being toxic for small and large animals. The PFCTA is produced by electrochemical fluorination of n-piperidine heptane fluor toluene in anhydrous hydrogen fluoride. The use of said PFCTA mixture instead of the individual perfluor-N-(4-methylcyclohexyl)-piperidine makes it possible to simplify, accelerate and lower the price of the production of perfluoronated organic compounds and extend the use of gas conveying emulsions produced on the basis thereof.