DE962883C - Process for the production of inositol hexapantothenic acid ester - Google Patents

Process for the production of inositol hexapantothenic acid ester

Info

Publication number
DE962883C
DE962883C DEC9901A DEC0009901A DE962883C DE 962883 C DE962883 C DE 962883C DE C9901 A DEC9901 A DE C9901A DE C0009901 A DEC0009901 A DE C0009901A DE 962883 C DE962883 C DE 962883C
Authority
DE
Germany
Prior art keywords
inositol
acid ester
hexapantothenic
production
acid
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DEC9901A
Other languages
German (de)
Inventor
Dr Rer Nat Lambert H Dipl-Chem
Rer Nat Dr Med Herbert Kell Dr
Dipl-Chem Dr Med Hein Mueckter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gruenenthal GmbH
Original Assignee
Gruenenthal 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 Gruenenthal GmbH filed Critical Gruenenthal GmbH
Priority to DEC9901A priority Critical patent/DE962883C/en
Application granted granted Critical
Publication of DE962883C publication Critical patent/DE962883C/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00Preparations for care of the hair
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37Esters of carboxylic acids
    • A61K8/375Esters of carboxylic acids the alcohol moiety containing more than one hydroxy group
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/67Vitamins
    • A61K8/673Vitamin B group

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Emergency Medicine (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Herstellung von Inosit-hexapantothensäureester Es wurde gefunden, daß der Inosit-hexapantothensäureester ein wertvolles Mittel zur Bekämpfung von Haarerkrankungen und ein geeigneter Zusatzstoff zu Haarwässern und kosmetischen i ist.Process for the production of inositol hexapantothenic acid ester It was found that the inositol hexapantothenic acid ester is a valuable control agent of hair diseases and a suitable additive to hair lotions and cosmetic i is.

Inosit besitzt sechs Oxygruppen. Man kann also Mono- und Polyester des Inosits bis zu den Hexaestern herstellen. Dies gilt auch für die Pantothensäureester. Inositol has six oxy groups. So you can use mono- and polyester of the inositol to the hexaesters. This also applies to the pantothenic acid esters.

Da die Pantothensäure eine empfindliche Verbindung und andererseits der Inosit reaktionsträge ist und sich nur schwer verestern läßt, erfolgt die Herstelllung des Inosit - hexapantothensäureesters zweckmäßig derart, daß zunächst ein Zwichenester des Inosits mit einer anorganischen @äure hergestellt und dieser Zwischenester dann mit @antothensäure umgeestert wird. Die Herstellung des Inosit-hexapantothensäureesters läßt sich @eispielsweise gut durch Umesterung des Inosit-@exaschwefelsäureesters erreichen. Auch die Umesterung deß Phosphorsäureesters des nosits führt zu praktisch @rauchbaren Produkten. Die Umesterung wird erleichtert, wenn man die für die Bildung des Zwischenesters verwendete im Verlauf der Umesterung frei werdende Säure möglichst weitgehend aus dem Reaktionsgemisch entfernt. Im Fall der Verwendung von Sohwefelsäureestern des nosits kann die frei werdende Schwefelsäure z. B. gut entfernt werden, wenn. man das Calciumsalz der Pantothensäure für die Reaktion verwendet.Because pantothenic acid is a sensitive compound and on the other hand the inositol is inert and difficult to esterify, the production takes place of the inositol - hexapantothenic acid ester expediently in such a way that initially an intermediate ester of the inositol with an inorganic acid and then this intermediate ester is transesterified with @antothenic acid. The production of the inositol hexapantothenic acid ester can be @ for example well by transesterification of the inositol @ exasulphuric acid ester reach. The transesterification of the phosphoric acid ester of the nosite also leads to practical @smokable products. The transesterification is made easier if one is responsible for the formation of the intermediate ester used acid liberated in the course of the transesterification as far as possible largely removed from the reaction mixture. In the case of using soulfuric acid esters des nosits can be made free Sulfuric acid e.g. B. well removed be when. the calcium salt of pantothenic acid is used for the reaction.

Beisp;iel I I8 g Inosit (o,I Mol) werden in 600 ml n-Schwefelsäure gelöst, diese Lösung im. Vakuum eingeengt. Die Konzentrierung der Schwefelsäure wirkt veresternd. Der leicht braune Sirup wird in 500 ml Wasser gelöst und unter Rühren mit I42,8 g Calciumpantothenat umgesetzt, wonach das sich bildende Calciumsulfat abfiltriert wird. Man erhält das Produkt aus der Lösung durch Gefriertrocknung in Form langer, wasserklarer Nadeln, die bei 68 bis 700 schmelzen. Ausbeute etwa goO/o der Theorie. Example I 18 g of inositol (0.1 mol) are dissolved in 600 ml of n-sulfuric acid solved this solution in. Reduced vacuum. The concentration of sulfuric acid has an esterifying effect. The light brown syrup is dissolved in 500 ml of water and taken under Stirring reacted with I42.8 g calcium pantothenate, after which the calcium sulfate formed is filtered off. The product is obtained from the solution by freeze-drying in Shape of long, water-clear needles that melt at 68 to 700. Yield about goO / o the theory.

Beispiel 2 Unter gutem Rühren trägt man in 65,3 cmS frisch destillierte Chlorsulfonsäure innerhalb I5 bis 20 Minuten in kleinen Anteilen 30 g Inosit ein. Danach rührt man noch etwa 1 Stunde bei Zimmertemperatur und erhitzt dann im Wasserbad unter weiterem Rühren, bis die Chlorwasserstoffentwicklung beendet und das Reaktionsgemisch zu einer weißen, stark hygroskopischen Masse vollständig erstarrt ist. Der gut getrocknete Rückstand schmilzt bei 151 bis 1540 I6 g des so erhaltenen Inositschwefelsäureesters trägt man unter äußerer Kühlung in 100 cm8 Eiswasser ein und gibt die so erhaltene Lösung unter Rühren tropfenweise zu einer Lösung von 34,6 g Calciumpantothenat in 100 cms Wasser. Man fügt nach 6stündigem Rühren 5,37 g Calciumhydroxyd zu und rührt dann noch weitere 8 Stunden. Dann wird das Calciumsulfat abgesaugt, das Filtrat, sofern erforderlich, mit Natriumbicarbonat neutralisiert und dann im Vakuum zur Trockne eingedampft. Der Rückstand wird in absolutem Alkohol aufgenommen, ungelöste Bestandteile werden abfiltriert, und dann wird das Filtrat im Vakuum eingedampft. Diese Maßnahme wird nochmals wiederholt. Man erhält so den Hexapantothensäureester des Inosits in Form weißer hygroskopischer Kristalle mit dem F. 68 bis 700. pATENTANSPR8GHE I. Verfahren zur Herstellung von Inosithexapantothensäureester, dadurch gekennzeichnet, daß man Inosit über den Inosit-hexaester einer anorganischen Säure mit Pantothensäure verestert. Example 2 Freshly distilled ones are carried in 65.3 cmS with thorough stirring Chlorosulphonic acid in small portions of 30 g of inositol within 15 to 20 minutes. The mixture is then stirred for about 1 hour at room temperature and then heated in a water bath with further stirring until the evolution of hydrogen chloride has ended and the reaction mixture has completely solidified to a white, strongly hygroscopic mass. The well-dried one The residue melts at 151 to 1540 16 g of the inositol sulfuric acid ester thus obtained it is poured into 100 cm8 of ice water with external cooling and the resultant is added Solution with stirring dropwise to a solution of 34.6 g calcium pantothenate in 100 cms of water. After stirring for 6 hours, 5.37 g of calcium hydroxide are added and the mixture is stirred then another 8 hours. Then the calcium sulfate is sucked off, the filtrate, if necessary, neutralized with sodium bicarbonate and then in vacuo Evaporated to dryness. The residue is taken up in absolute alcohol, undissolved Components are filtered off, and then the filtrate is evaporated in vacuo. This measure is repeated again. The hexapantothenic acid ester is obtained in this way of the inositol in the form of white hygroscopic crystals with the F. 68 to 700. PATENT ANSPR8GHE I. Process for the preparation of inositol hexapanthene acid ester, characterized in that that you can use inositol via the inositol hexaester of an inorganic acid with pantothenic acid esterified.

Claims (1)

2. Verfahren nach Anspruch I, dadurch gekennzeichnet, daß man den Inosit-hexaschwefelsäureester mit Calciumpantothenat umsetzt 2. The method according to claim I, characterized in that the Reacts inositol hexasulphuric acid ester with calcium pantothenate
DEC9901A 1954-09-03 1954-09-03 Process for the production of inositol hexapantothenic acid ester Expired DE962883C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC9901A DE962883C (en) 1954-09-03 1954-09-03 Process for the production of inositol hexapantothenic acid ester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC9901A DE962883C (en) 1954-09-03 1954-09-03 Process for the production of inositol hexapantothenic acid ester

Publications (1)

Publication Number Publication Date
DE962883C true DE962883C (en) 1957-05-02

Family

ID=7014642

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC9901A Expired DE962883C (en) 1954-09-03 1954-09-03 Process for the production of inositol hexapantothenic acid ester

Country Status (1)

Country Link
DE (1) DE962883C (en)

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