NO124306B - - Google Patents

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Publication number
NO124306B
NO124306B NO487569A NO487569A NO124306B NO 124306 B NO124306 B NO 124306B NO 487569 A NO487569 A NO 487569A NO 487569 A NO487569 A NO 487569A NO 124306 B NO124306 B NO 124306B
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NO
Norway
Prior art keywords
chloro
alkali metal
disulfonamide
compounds
metal salts
Prior art date
Application number
NO487569A
Other languages
Norwegian (no)
Inventor
E Fitzer
D Overhoff
Original Assignee
Sigri Elektrographit Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sigri Elektrographit Gmbh filed Critical Sigri Elektrographit Gmbh
Publication of NO124306B publication Critical patent/NO124306B/no

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Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F9/00Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
    • D01F9/08Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
    • D01F9/12Carbon filaments; Apparatus specially adapted for the manufacture thereof
    • D01F9/14Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
    • D01F9/20Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products
    • D01F9/21Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F9/22Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Inorganic Fibers (AREA)
  • Artificial Filaments (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Fremgangsmåte til fremstilling av 4-klor-5-halogenbenzen-l,3-disulfonamider eller alkalimetallsalter av sådanne. Process for the production of 4-chloro-5-halobenzene-1,3-disulfonamides or alkali metal salts thereof.

Foreliggende oppfinnelse angår en The present invention relates to a

fremgangsmåte til fremstilling av nye 4-klor-5-halogen-benzen-l,3-disulfonamid-forbindelser med den generelle formel: process for the preparation of new 4-chloro-5-halo-benzene-1,3-disulfonamide compounds with the general formula:

samt alkalimetallsalter av sådanne forbindelser. I den ovenfor anførte formel be-tegner R et klor- eller bromatom. De nye forbindelser som fremstilles ved fremgangsmåten ifølge oppfinnelsen er for-delaktige kjemoterapeutiske forbindelser og har anvendelse bl. a. ved behandling av glaucoma (grønn stær). Forbindelsene har di-uretiske eller natriuretiske egenskaper. as well as alkali metal salts of such compounds. In the above-mentioned formula, R denotes a chlorine or bromine atom. The new compounds produced by the method according to the invention are advantageous chemotherapeutic compounds and are used, among other things, a. in the treatment of glaucoma (glaucoma). The compounds have diuretic or natriuretic properties.

Forbindelsene kan gis i terapeutiske doser The compounds may be administered in therapeutic doses

vanlige måter, f. eks. i form av tabletter. Forbindelsene er effektive ved oral anvendelse, såvel som ved injeksjon. Da for-bindelsenes alkalimetallsalter er lett opp-løselige i isotoniske, vandige midler, kan usual ways, e.g. in the form of tablets. The compounds are effective by oral application, as well as by injection. As the compounds' alkali metal salts are easily soluble in isotonic, aqueous media, can

injiserbare oppløsninger fremstilles ved å injectable solutions are prepared by

oppløse disse salter i det valgte medium dissolve these salts in the chosen medium

som, om ønskes, kan tilsettes konserve-ringsmidler. to which, if desired, preservatives can be added.

Dosene av 4-klorbenzen-l,3-disulfonamid-forbindelsen som fremstilles ved The doses of the 4-chlorobenzene-1,3-disulfonamide compound produced by

fremgangsmåten ifølge foreliggende oppfinnelse kan varieres innen et stort områ- the method according to the present invention can be varied within a large area

de. Av denne grunn kan tabletter inne-holdende 100, 150, 250 eller 500 mg av den aktive bestanddel gjøres tilgjengelig for legene for symptomatisk innstilling av do-sen etter den enkelte pasient. De nevnte doser ligger godt under den giftige eller dødelige dose for forbindelsene. Studier av kronisk giftighet med hunder som for-søksdyr og under ani? ;ndelse av 4,5-diklor-benzen-l,3-disulfonar"aid viser at 20 mg pr. kg pr. døgn tåles godt i lange tidsrom uten noen uønskede toksiske virkninger. Ved for-søk med mus ble den dose som fremkalte en dødelighet på 50 % (LD50) funnet å være 703 mg pr. kg ved intravenøs anvendelse, og 1710 mg pr. kg ved oral anvendelse. the. For this reason, tablets containing 100, 150, 250 or 500 mg of the active ingredient can be made available to doctors for symptomatic adjustment of the dose according to the individual patient. The mentioned doses are well below the toxic or lethal dose for the compounds. Studies of chronic toxicity with dogs as test animals and during ani? A study of 4,5-dichloro-benzene-1,3-disulfonamide shows that 20 mg per kg per day is well tolerated for long periods of time without any unwanted toxic effects. In experiments with mice, the dose that induced a 50% lethality (LD50) found to be 703 mg per kg by intravenous application, and 1710 mg per kg by oral application.

Fremgangsmåten ifølge oppfinnelsen til fremstilling av 4-klor-5-halogenbenzen-1,3-disulfonamid-forbindelser er karakterisert ved at man omsetter et 5-halogen-4-hydroxybenzen-l,3-disulfonylklorid med fosforpentaklorid, hvorved der dannes det tilsvarende 4-klor-5-halogenbenzen-l,3-disulfonylklorid, som man på kj ent måte overfører til det tilsvarende 4-klor-5-halo-genbenzen-l,3-d'isulfonamid, i hvilket 5-halogensubstituenten er et kloratom eller et bromatom, og eventuelt på kjent måte danner de tilsvarende alkalimetallsalter. The process according to the invention for the production of 4-chloro-5-halobenzene-1,3-disulfonamide compounds is characterized by reacting a 5-halo-4-hydroxybenzene-1,3-disulfonyl chloride with phosphorus pentachloride, whereby the corresponding 4 -chloro-5-halobenzene-1,3-disulfonyl chloride, which is transferred in a known manner to the corresponding 4-chloro-5-halobenzene-1,3-disulfonamide, in which the 5-halogen substituent is a chlorine atom or a bromine atom, and possibly in a known manner they form the corresponding alkali metal salts.

Fortrinnsvis bruker man 2,5 mol fosforpentaklorid pr. mol disulfonylklorid. Preferably, 2.5 mol of phosphorus pentachloride is used per moles of disulfonyl chloride.

Alkalimetallsaltene av 4-klor-5-halo-genbenzen-l,3-disulfonamid-forbindelsene fremstillet ved fremgangsmåten ifølge oppfinnelsen kan fremstilles ved å oppløse vedkommende forbindelse i en vandig eller en alkoholisk oppløsning av vedkommende al-kalimetallhydroksyd, og om ønskes å iso- eller ved hjelp av andre metoder som er lere saltet ved fordampning av oppløsnings- kjent for fagfolk i den organiske kjemi, midlet. Et hvilket som helst alkalimetall- I det følgende beskrives som eksempler salt som natrium, kalium eller litiumsalter noen utførelsesformer for fremgangsmåten kan fremstilles ved hjelp av denne metode, ifølge oppfinnelsen. The alkali metal salts of the 4-chloro-5-halo-benzene-1,3-disulfonamide compounds produced by the method according to the invention can be prepared by dissolving the compound in question in an aqueous or an alcoholic solution of the alkali metal hydroxide in question, and if desired to iso- or by means of other methods which are clay salted by evaporation of solvent- known to those skilled in organic chemistry, the agent. Any alkali metal - In the following, salt such as sodium, potassium or lithium salts are described as examples, some embodiments of the method can be prepared using this method, according to the invention.

En blanding av 5-klor-4-hydroksyben-zen-l,3-disulfonylklorid (omkring 302 g tilsvarende 0,92 mol) og 480 g (2,3 mol) fosforpentaklorid oppvarmes i en time til 120— 140° C i en to liters rundkolbe. Den herved erholdte klare oppløsning helles på is, hvorved 4,5-diklorbenzen-l,3-disulfonyl-klorid øyeblikkelig skiller seg ut som et fast stoff. Dette faste stoff oppsamles ved filtrering og vaskes med vann. Mens det ennå er i fuktig tilstand tilsettes det i porsjoner og i løpet av 20 minutter til en liter konsentrert ammoniakkvann i et 3 liters beger-glass omgitt av et koldt vannbad. Man lar derpå reaksjonsblandingen stå i en time uten avkjøling, hvorpå den oppvarmes på dampbad i omkring 30 minutter mens luft bobles gjennom den for å fjerne noe av overskuddet av ammoniakk. Reaksjonsblandingen filtreres derpå, surgjøres med konsentrert saltsyre og avkjøles. Produktet skiller seg ut som et gummiaktig stoff fra hvilket den overliggende væske dekanteres. Det gummiaktige stoff tritureres derpå med 250 ml vann for å frembringe krystallisa-sjon. Det således erholdte rå produkt om-krystalliseres fra 3200 ml kokende vann og derpå fra 40 %'s vandig isopropylalkohol, hvorpå man får 4,5-diklorbenzen-l,3-disulfonamid som et hvitt fast stoff med sm.p. 228,5—229,0° C. Eksempel 2: 5- brom- 4- klort>enzen- l, 3- disulfonamid. A mixture of 5-chloro-4-hydroxybenzene-1,3-disulfonyl chloride (about 302 g corresponding to 0.92 mol) and 480 g (2.3 mol) phosphorus pentachloride is heated for one hour to 120-140° C in a two liter round flask. The clear solution thus obtained is poured onto ice, whereby 4,5-dichlorobenzene-1,3-disulfonyl chloride immediately separates out as a solid. This solid is collected by filtration and washed with water. While still moist, it is added in portions and over 20 minutes to one liter of concentrated ammonia water in a 3 liter beaker surrounded by a cold water bath. The reaction mixture is then allowed to stand for one hour without cooling, after which it is heated on a steam bath for about 30 minutes while air is bubbled through it to remove some of the excess ammonia. The reaction mixture is then filtered, acidified with concentrated hydrochloric acid and cooled. The product separates as a gummy substance from which the overlying liquid is decanted. The gummy substance is then triturated with 250 ml of water to produce crystallization. The crude product thus obtained is recrystallized from 3200 ml of boiling water and then from 40% aqueous isopropyl alcohol, whereupon 4,5-dichlorobenzene-1,3-disulfonamide is obtained as a white solid with m.p. 228.5—229.0° C. Example 2: 5-bromo-4-chlorotriene-1,3-disulfonamide.

Ved i stedet for det i eksempel 1 an-vendte 5-klor-4-hydroksybenzen-l,3-disulfonylklorid å bruke en ekvimolar mengde 5-brom-4-hydrofcsyibenzen-l,3-disulfonid-klorid og forøvrig igå frem således som beskrevet i eksempel 1 får man 5-brom-4-klorbenzen-l,3-disulfonamid. By instead of the 5-chloro-4-hydroxybenzene-1,3-disulfonyl chloride used in example 1, using an equimolar amount of 5-bromo-4-hydroxybenzene-1,3-disulfonide chloride and otherwise proceeding as follows described in example 1, 5-bromo-4-chlorobenzene-1,3-disulfonamide is obtained.

Claims (1)

Fremgangsmåte til fremstilling av 4-klor-5-halogen-benzen-l,3-disulfonamider eller alkalimetallsalter av sådanne, som bl. a. har anvendelse ved behandling av glaucoma, karakterisert ved at man omsetter et 5-halogen-4-hydroxybenzen-l,3-disulfonylklorid med fosforpentaklorid, hvorved der dannes det tilsvarende 4-klor-5-halogembenzen-1,3-disulfonyIklorid, som man på kjent måte overfører til det tilsvarende 4-klor-5-halogenbenzen-l,3-disulfonamid, i hvilket 5-halogensubstituen-ten er et kloratom eller et bromatom, og eventuelt på kjent måte danner de tilsvarende alkalimetallsalter.Process for the production of 4-chloro-5-halo-benzene-1,3-disulfonamides or alkali metal salts thereof, such as a. has application in the treatment of glaucoma, characterized by reacting a 5-halo-4-hydroxybenzene-1,3-disulfonyl chloride with phosphorus pentachloride, whereby the corresponding 4-chloro-5-halogen-1,3-disulfonyl chloride is formed, which is transferred in a known manner to the corresponding 4-chloro-5-halobenzene-1,3-disulfonamide, in which the 5-halogen substituent is a chlorine atom or a bromine atom, and optionally in a known manner they form the corresponding alkali metal salts.
NO487569A 1968-12-20 1969-12-10 NO124306B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681816170 DE1816170A1 (en) 1968-12-20 1968-12-20 Process for the production of carbon or graphite fibers

Publications (1)

Publication Number Publication Date
NO124306B true NO124306B (en) 1972-04-04

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ID=5716975

Family Applications (1)

Application Number Title Priority Date Filing Date
NO487569A NO124306B (en) 1968-12-20 1969-12-10

Country Status (8)

Country Link
AT (1) AT295023B (en)
BE (1) BE743458A (en)
CH (1) CH515853A (en)
DE (1) DE1816170A1 (en)
FR (1) FR2026637A1 (en)
GB (1) GB1232186A (en)
NL (1) NL6918783A (en)
NO (1) NO124306B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS602408B2 (en) * 1977-08-17 1985-01-21 東邦ベスロン株式会社 Carbon fiber with excellent heat and oxidation resistance

Also Published As

Publication number Publication date
FR2026637A1 (en) 1970-09-18
BE743458A (en) 1970-06-19
CH515853A (en) 1971-11-30
AT295023B (en) 1971-12-27
DE1816170A1 (en) 1970-09-17
NL6918783A (en) 1970-06-23
GB1232186A (en) 1971-05-19

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