公开(公告)号：DE3901002A1

公开(公告)日：1990-07-26

申请号：DE3901002

申请日：1989-01-14

Applicant: HOECHST AG

Inventor： SIEGEMUND GUENTER DR ,  FINKE MANFRED DR

IPC: B01J31/30 ,  C07B61/00 ,  C07C51/58 ,  C07C59/135 ,  C08G65/02 ,  C08G65/22

Abstract: A process for the preparation of the dimer of hexafluoropropene oxide (HFPO), in which the HFPO is dimerized in an aprotic polar solvent in the presence of a catalyst mixture, is described. The catalyst mixture is composed of a metal salt of the elements of the 1st transition metal series of the periodic table and of a tertiary diamine. By bringing in a molar ratio of metal salt to tertiary diamine in the range from 2:1 to 1:2, in particular 1:1, the selectivity for the dimeric compound is greatest, with high yields of the dimer being obtained.

公开(公告)号：DE3725941A1

公开(公告)日：1989-02-16

申请号：DE3725941

申请日：1987-08-05

Applicant: HOECHST AG

Inventor： KRUSE ALFRED DR ,  SIEGEMUND GUENTER DR ,  RUPPERT INGO DR

IPC: B01J31/02 ,  C07B61/00 ,  C07C27/00 ,  C07C29/147 ,  C07C29/36 ,  C07C33/46 ,  C07C67/00 ,  C07C67/14 ,  C07C69/76 ,  C07C69/767 ,  C07C69/78 ,  C07C69/92 ,  C07C321/28

Abstract: Esters of the formula … … in which the radicals R to R are identical or different and denote hydrogen, alkyl having 1 to 6 carbon atoms, which may be perfluorinated, halogen, alkoxy or alkylthio each having 1 to 6 carbon atoms and n in both cases is identical or different and denotes 0 or an integer. A process for the preparation of aryl bis(perfluoroalkyl) compounds of the formula … … in which R to R and n have the abovementioned meaning and Z denotes hydrogen or the arylcarbonyl radical … …

公开(公告)号：DE3725126A1

公开(公告)日：1989-02-09

申请号：DE3725126

申请日：1987-07-29

Applicant: HOECHST AG

Inventor： KRUSE ALFRED DR ,  SIEGEMUND GUENTER DR ,  RUPPERT INGO DR ,  SCHLICH KLAUS

IPC: C07C45/63 ,  B01J31/02 ,  C07B31/00 ,  C07B41/06 ,  C07B61/00 ,  C07C45/00 ,  C07C45/45 ,  C07C45/68 ,  C07C49/80 ,  C07C49/84 ,  C07C67/00 ,  C07C319/20 ,  C07C323/09 ,  C07C323/22

Abstract: A process for the preparation of arylperfluoroalkyl ketones of the general formula I (I) wherein R1 and R5 represent at least one of the substituents hydrogen, halogen, alkyl, alkoxy, alkylthio and perfluorinated alkyl, each having from 1 to 6 carbon atoms and n is an integer from 1 to 6, which comprises reacting an aryl carbonyl compound having the general formula II (II) wherein R1 to R5 have the above-mentioned meaning and X as a monovalent moiety represents fluorine, chlorine or bromine and as a bivalent moiety the oxygen atom of an anhydride bridge, with a perfluoroalkyl halide of the general formula CnF2n+1-Hal (III), wherein Hal represents chlorine, bromine or iodine and n is an integer from 1 to 6, in the presence of a trisdialkyl amide of phosphorus acid of the general formula P[N(alkyl)2]3 (IV).

公开(公告)号：DE3704005A1

公开(公告)日：1988-08-18

申请号：DE3704005

申请日：1987-02-10

Applicant: HOECHST AG

Inventor： SCHNEIDER KLAUS-ALBERT DR ,  SIEGEMUND GUENTER DR

IPC: C07C319/14 ,  C07C67/00 ,  C07C205/26 ,  C07C209/00 ,  C07C209/18 ,  C07C209/36 ,  C07C211/52 ,  C07C211/54 ,  C07C213/00 ,  C07C217/52 ,  C07C217/58 ,  C07C217/92 ,  C07C303/00 ,  C07C307/00 ,  C07C309/00 ,  C07C309/63 ,  C07C309/72 ,  C07C309/73 ,  C07C311/00 ,  C07C313/00 ,  C07C323/09 ,  C07C323/18 ,  C07C323/34 ,  C07C323/36 ,  C07C323/37 ,  C07C87/60 ,  C07C149/34 ,  C07C149/42

Abstract: A process for the preparation of compounds of the formula I in which R represents NO2 or NH2 and R represents a radical of a cycloaliphatic amine with 6 ring atoms and a total of not more than 10 carbon atoms, an aniline radical which contains a total of not more than 10 carbon atoms and up to three substituents from amongst the group comprising alkyl, alkoxy, chlorine and bromine, of which not more than two can be halogen and not more than one can be alkoxy, or which contains a trifluoromethyl, phenoxy or benzyl group, the phenylmercapto radical or the benzylmercapto radical, compounds of the formula I in which R is NO2 or NH2 and R represents a radical of a cycloaliphatic amine having 6 ring atoms and a total of not more than 10 carbon atoms, an aniline radical which contains a total of not more than 10 carbon atoms and at least one, but up to three substituents from amongst the group comprising alkyl, alkoxy, chlorine and bromine, of which not more than two can be halogen and not more than one can be alkoxy, or which contains a trifluoromethyl or benzyl group, the phenylmercapto radical or the benzylmercapto radical, and compounds of the formula II in which R represents hydrogen or NO2 and R represents OMes, OTos or OBros, and a process for the preparation of compounds of the formula II.

公开(公告)号：DE3620050A1

公开(公告)日：1987-12-17

申请号：DE3620050

申请日：1986-06-14

Applicant: HOECHST AG

Inventor： HEUMUELLER RUDOLF DR ,  HERBRECHTSMEIER PETER DR ,  SIEGEMUND GUENTER DR ,  GROH WERNER DR

IPC: C07C69/653 ,  C07C51/347 ,  C07C51/367 ,  C07C51/38 ,  C07C67/00 ,  C07C67/14 ,  C07C253/00 ,  C07C253/30 ,  C07C255/55 ,  C08F20/22 ,  C08F20/50 ,  C08F30/04 ,  C08F120/02 ,  C08F120/22 ,  C08G16/00 ,  C07C121/52

Abstract: Certain esters of alpha -fluoroacrylic acid are available via hydrolysis of alpha -hydroxymethyl- alpha -fluoromalonic esters, followed by decarboxylation of the hydrolysis product. Phenyl alpha -fluoroacrylates which are substituted on the phenyl radical can be prepared by hydroxymethylation of dimethyl alpha -fluoromalonates, decarboxylation and dehydration of the resultant dimethyl alpha -hydroxymethyl- alpha -fluoromalonate and esterification of the resultant alpha -fluoroacrylic acid with substituted phenols. The substituted phenyl alpha -fluoroacrylates are colourless liquids or colourless solids which are polymerisable. They are suitable as starting material for the preparation of fluorinated polymers.

公开(公告)号：DE3034537A1

公开(公告)日：1982-05-06

申请号：DE3034537

申请日：1980-09-12

Applicant: HOECHST AG

Inventor： SIEGEMUND GUENTER DR ,  SCHWERTFEGER WERNER DR

IPC: C07C309/80 ,  C07C67/00 ,  C07C301/00 ,  C07C303/02 ,  C07C143/70

Abstract: Monohydroperfluoroalkanesulfonic acid halides of the formula I (I) in which Rf=F or perfluoroalkyl, X=Cl or F and n=1-7, are prepared by reacting monohydroperfluoroalkanesulfonic acids of the formula II (II) in which Rf and n have the same meaning as in formula I, with pyrocatechol-phosphorus trichloride (->compounds I in which X=Cl) and, if desired, further reacting the products with alkali metal fluorides and/or alkali metal hydrogen fluorides (->compounds I in which X=F). With the exception of the compound in which Rf=F, n=1 and X=Cl (=HCF2-CF2-SO2Cl), the compounds I are new. The compounds I are chiefly intermediates in organic fluorine chemistry, in particular for the preparation of perfluorinated ion exchanger resins containing sulfonic acid groups.

公开(公告)号：DE3034499A1

公开(公告)日：1982-04-29

申请号：DE3034499

申请日：1980-09-12

Applicant: HOECHST AG

Inventor： MILLAUER HANS DR ,  SCHWERTFEGER WERNER DR ,  SIEGEMUND GUENTER DR

IPC: C25B3/28 ,  C07C45/00 ,  C07C51/58 ,  C07C53/50 ,  C07C59/21 ,  C07C67/00 ,  C07C305/00 ,  C07C305/06 ,  C07C305/26 ,  C07C325/00 ,  C25B3/23 ,  C25B3/00 ,  C07C141/04

Abstract: Omega-fluorosulfato-perfluoro-(2-methyl-alkan-3-ones) of the formula which are intermediates in the preparation of perfluoro-isopropylketocarboxylic acid fluorides from omega-hydro-perfluoro-(2-methyl-alkan-3-ones).

公开(公告)号：DE3034491A1

公开(公告)日：1982-04-29

申请号：DE3034491

申请日：1980-09-12

Applicant: HOECHST AG

Inventor： MILLAUER HANS DR ,  SIEGEMUND GUENTER DR ,  SCHWERTFEGER WERNER DR

IPC: C07C69/708 ,  C07C45/51 ,  C07C45/54 ,  C07C49/16 ,  C07C49/167 ,  C07C51/00 ,  C07C51/373 ,  C07C51/62 ,  C07C53/50 ,  C07C59/21 ,  C07C59/347 ,  C07C59/58 ,  C07C59/88 ,  C07C67/00 ,  C07C67/313 ,  C07C67/317 ,  C07C69/716 ,  C07C301/00 ,  C07C303/00 ,  C07C305/00 ,  C07C305/26 ,  C25B3/23 ,  C25B3/00 ,  C07C141/04

Abstract: Perfluorocarbonyl compounds of the formulae IV and V (IV) (V) in which Rf denotes perfluoroalkyl, R'f denotes perfluoroalkylene, R denotes F, Cl, perfluoroalkyl or -OR''' (R'''=alkyl, aryl or aralkyl) and n denotes a number from 0 to 10, are prepared, starting from compounds of the formula I (I) in which Rf, R'f and n have the same meaning as in the formulae IV and V and R'' is F, Cl or perfluoroalkyl, by electrolysis in an electrolyte consisting of fluorosulfonic acid/alkali metal fluorosulfonate and, if necessary, esterification with R'''OH, and decomposition in the presence of catalytic amounts of alkali metal fluorides and/or aprotic N-bases. Most of the compounds IV and V are new; the latter are, above all, valuable heat transfer fluids, lubricating oils or intermediates for the preparation of other F-organic compounds.

公开(公告)号：DE2906447A1

公开(公告)日：1980-09-04

申请号：DE2906447

申请日：1979-02-20

Applicant: HOECHST AG

Inventor： SIEGEMUND GUENTER DR ,  MUFFLER HERBERT DR

IPC: C07D317/36 ,  C07D317/42 ,  A61K31/335

Abstract: 4,5-Perfluoro-1,3-dioxolanes prepared by the described process have an anesthetic effect.

公开(公告)号：DE2524956A1

公开(公告)日：1976-12-16

申请号：DE2524956

申请日：1975-06-05

Applicant: HOECHST AG

Inventor： MUFFLER HERBERT DR ,  MUSCHAWECK ROMAN DR ,  SIEGEMUND GUENTER DR

IPC: C07C43/12 ,  A61K31/08 ,  A61K33/00

Abstract: The fluoroether of formula (I) is new: CF3.CHF.CF2.OCH2F (I). It is prepd. from CF3.CHF.CF2.OCH3 by partial photochlorination to CF3.CHF.CF2.OCH2Cl then conventional fluorination. Cpd. (I) is an inhalation anaesthetic opt. used in conjunction with N2O, ether etc. It is non-flammable, extremely stable towards NaOH-Ca(OH)2 mixts.; easily miscible with other org. liquids and since it has a relatively low b. pt. easily and controllably introduced into breathing mixts. It is also useful as a solvent for fluorinated olefins, other fluorinated cpds., fats and oils, and may be used to clean metal surfaces.