公开(公告)号：US3899531A

公开(公告)日：1975-08-12

申请号：US42411873

申请日：1973-12-12

Applicant: HOECHST AG

Inventor： SIEGEMUND GUNTER

IPC: B01J27/00 ,  C01B7/00 ,  C01B31/00 ,  C01B31/26 ,  C07C51/58 ,  C01B17/45

CPC classification number: C01B7/00 ,  C01B32/00 ,  C01B32/70 ,  C01B32/80

Abstract: Carbonyl dihalides COFX (where X is F, Cl or Br) are obtained by reaction of a perhalomethane CFXYZ (where Y and Z are Cl or Br) with sulfur trioxide. The reaction may be catalyzed by the presence of sulfuric acid and/or heavy metal salts such as mercury salts.

Abstract translation: 羰基二卤化物COFX（其中X为F，Cl或Br）通过全卤甲烷CFXYZ（其中Y和Z为Cl或Br）与三氧化硫反应获得。 反应可以通过存在硫酸和/或重金属盐如汞盐来催化。

公开(公告)号：CA2127895C

公开(公告)日：2004-10-26

申请号：CA2127895

申请日：1994-07-13

Applicant: HOECHST AG

Inventor： FRANZ RAIMUND ,  SIEGEMUND GUNTER

IPC: B01J31/08 ,  C07B61/00 ,  C07C17/087 ,  C07C19/08 ,  C07C17/08

Abstract: The invention relates to a process for the preparation of 2-H-heptafluoropropane, wherein hexafluoropropene is reacted with hydrogen fluoride in the presence of a weakly basic ion exchanger whose reactive centers comprise tertiary amino groups.

公开(公告)号：CA2007686A1

公开(公告)日：1990-07-14

申请号：CA2007686

申请日：1990-01-12

Applicant: HOECHST AG

Inventor： FINKE MANFRED ,  SIEGEMUND GUNTER ,  STRUTZ HEINZ

IPC: C07C59/135 ,  C07C51/58 ,  C08G65/22

Abstract: of the disclosures HOE 89/F 008 A process for the continuous oligomerization of hexafluoropropene oxide A continuous process for the preparation of perfluorinated carbonyl fluorides from hexafluoropropene oxide (HFPO), in which HFPO is continuously oligomerized in a catalyst solution in devices which allow separation of the heavy product phase from the catalyst phase during the reaction, is described. Different oligomer distributions can be achieved by choice of the catalyst and different operating temperatures. The reaction itself takes place always in the substantial absence of the product which is formed, and achieves a considerable saving in time.

公开(公告)号：AU588319B2

公开(公告)日：1989-09-14

申请号：AU5785286

申请日：1986-05-23

Applicant: HOECHST AG

Inventor： HEUMULLER RUDOLF ,  HERBRECHTSMEIER PETER ,  WIENERS GERHARD ,  GROH WERNER ,  SIEGEMUND GUNTER

IPC: C07C67/465 ,  C07C51/34 ,  C07C51/377 ,  C07C51/60 ,  C07C57/54 ,  C07C67/08 ,  C07C67/14 ,  C07C67/31 ,  C07C69/63 ,  C07C69/653 ,  C07C69/675 ,  C08F20/00 ,  C08F20/02 ,  C08F20/10 ,  C08F20/22 ,  C08F20/24 ,  C08F220/02 ,  C08F220/10 ,  C08F220/18 ,  C08F220/22 ,  G02B1/04 ,  G02B6/00 ,  C07D307/42 ,  C07D333/16

公开(公告)号：CA1053605A

公开(公告)日：1979-05-01

申请号：CA252300

申请日：1976-05-11

Applicant: HOECHST AG

Inventor： SIEGEMUND GUNTER ,  MUSCHAWECK ROMAN

IPC: A61K31/075 ,  C07C41/00 ,  C07C43/12 ,  C07C67/00

Abstract: 1,2,2,2-TETRAFLUORETHYL-FLUOROMETHYL ETHER AND PROCESS FOR PREPARING IT The invention relates to 1,2,2,2-tetrafluorethyl-fluoromethyl ether, to a process for preparing it and to its use as inhalation anesthetic.

公开(公告)号：IN172004B

公开(公告)日：1993-03-13

申请号：IN204CA1989

申请日：1989-03-13

Applicant: HOECHST AG

Inventor： HACKENBRUCH JOACHIM ,  PAPENFUHS THEODOR ,  WARNING KLAUS ,  SIEGEMUND GUNTER

IPC: C07B61/00 ,  C07C45/00 ,  C07C45/46 ,  C07C49/813 ,  C07C49/84 ,  C07C67/00 ,  C07C315/04 ,  C07C317/22 ,  C07C317/24 ,  C07C319/20 ,  C07C323/09 ,  C07C323/22 ,  C07F7/08 ,  C07C41/18 ,  C07C43/263 ,  C07C49/807 ,  C07C147/06

Abstract: Process for the preparation of halogenated aromatic compounds of the formula … … in which Hal denotes fluorine, chlorine or bromine and… Z denotes an aromatic group,… characterised in that a halobenzene of the formula C6H5Hal (II) is reacted under anhydrous conditions with a bis-acid halide of the formula Hal-CO-Z-CO-Hal (III) in a molar ratio of at least 2:1 in the presence of haloalkanesulphonic acids of the formula Y(CnX2n)SO3H (IV), where in the formulae II and III Hal and Z have the meaning given previously and Y denotes fluorine or hydrogen, X denotes fluorine and/or chlorine and n denotes an integer from 1 to 10, where at least one X stands for fluorine. … The invention further relates to the use of compounds of the formula I, preferably of 1,4-bis(4-fluorobenzoyl)benzene and of 1,4-bis(4-chlorobenzoyl)benzene, in the form of a clear solution in diphenyl sulphone, which has been obtained by treatment with a solid base, preferably Na2CO3, K2CO3 or MgO, for the preparation of polycondensates.

公开(公告)号：CA2012918A1

公开(公告)日：1990-09-25

申请号：CA2012918

申请日：1990-03-23

Applicant: HOECHST AG

Inventor： LAU JURGEN ,  SIEGEMUND GUNTER ,  ROHRSCHEID FREIMUND

IPC: B01J27/06 ,  C07B61/00 ,  C07C37/16 ,  C07C39/367 ,  C07C43/29 ,  C07C51/353 ,  C07C63/70 ,  C07C63/72 ,  C07C65/24 ,  C07C205/07 ,  C07C205/38 ,  C07C211/52 ,  C07C217/80 ,  C07C217/90 ,  C07C229/52 ,  C07C233/07 ,  C07C235/42 ,  C08G69/40 ,  C08G69/46 ,  C08G73/10 ,  C08G69/00 ,  C07C235/46 ,  C07C205/59

Abstract: HOE 89/F 101 of the disclosure Hexafluoroisopropyl-containing monomers, processes for their preparation, and their use Compounds of the formula I (I) can be prepared by various procesæ steps from 2-(4-methylphenyl)-2-hexafluoroisopropanol. Hexafluoroisopropyl-containing monomers are important starting compounds in the preparation of linear polycarboxamides and polycarboximides.

公开(公告)号：CA1171427A

公开(公告)日：1984-07-24

申请号：CA425730

申请日：1983-04-12

Applicant: HOECHST AG

Inventor： MILLAUER HANS ,  SCHWERTFEGER WERNER ,  SIEGEMUND GUNTER

IPC: C07C141/02

Abstract: This invention is directed to .omega.-fluorosulfato-perfluoro-(2-methyl-alkan-3-one) of the formula V FS020-(CF2)m-?-CF(CF3)2 wherin m = a number from 1 to 10. The compounds of the invention are intermediates for the preparation of perfluoroisopropylketoearboxylie acid flourides. These eompounds are used for the preparation of perfluorinated ketocarboxylic acid esters which have an isopropyl radical adjacent to the keto group and are in turn, in particular, valuable heat transfer fluids and surface-active agents with a high stability to chemicals and heat.

公开(公告)号：CA2127732C

公开(公告)日：2004-12-07

申请号：CA2127732

申请日：1994-07-11

Applicant: HOECHST AG

Inventor： FRANZ RAIMUND ,  SIEGEMUND GUNTER

IPC: C07C17/20 ,  C07B61/00 ,  C07C17/087 ,  C07C19/08 ,  C07C19/12 ,  C07C17/08

Abstract: Process for the addition of HF to halogenated alkenes The invention relates to a process for the addition of HF to halogenated alkenes by reacting these with at least one hydrofluoride of the formula [B.cndot.n HF], in which B is an organic nitrogen base and n is as integer or fraction .ltoreq. 4, it being intended that the reaction of perfluoroiso- butene CF2=C(CF3)2 is excluded.

公开(公告)号：CA1309106C

公开(公告)日：1992-10-20

申请号：CA539539

申请日：1987-06-12

Applicant: HOECHST AG

Inventor： HEUMULLER RUDOLF ,  HERBRECHTSMEIER PETER ,  SIEGEMUND GUNTER ,  GROH WERNER

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

Abstract: of the disclosure: Substituted phenyl .alpha.-fluoroacrylates Certain esters of .alpha.-fluoroacrylic acid are accessible by hydrolyzing .alpha.-hydroxymethyl .alpha.-fluoromalonic acid esters and subsequently decarboxylating the hydrolysis product The phenyl .alpha.-fluoroacrylates which are substituted on the phenyl radical can be prepared by hydroxymethylating dimethyl .alpha.-fluoromalonate, decarboxylating and dehydrating the resulting dimethyl .alpha.-hydroxymethyl-.alpha.-fluoro-malonate and esterifying the resulting .alpha.-fluoroacrylic acid with substituted phenols. The substituted phenyl .alpha.-fluoroacrylates are colorless liquids or colorless solids which can be polymerized. They are suitable for use as a starting material for the preparation of fluorine polymers.