GB418385A - A process for the manufacture of para (or 2.5) diketocamphane carboxylic acid and related acids - Google Patents

A process for the manufacture of para (or 2.5) diketocamphane carboxylic acid and related acids

Info

Publication number
GB418385A
GB418385A GB1233733A GB1233733A GB418385A GB 418385 A GB418385 A GB 418385A GB 1233733 A GB1233733 A GB 1233733A GB 1233733 A GB1233733 A GB 1233733A GB 418385 A GB418385 A GB 418385A
Authority
GB
United Kingdom
Prior art keywords
diketocamphane
carboxylic acid
solution
benzene
carbon dioxide
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
GB1233733A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1233733A priority Critical patent/GB418385A/en
Publication of GB418385A publication Critical patent/GB418385A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
    • C07C49/385—Saturated compounds containing a keto group being part of a ring
    • C07C49/417—Saturated compounds containing a keto group being part of a ring polycyclic
    • C07C49/423—Saturated compounds containing a keto group being part of a ring polycyclic a keto group being part of a condensed ring system
    • C07C49/427—Saturated compounds containing a keto group being part of a ring polycyclic a keto group being part of a condensed ring system having two rings
    • C07C49/433—Saturated compounds containing a keto group being part of a ring polycyclic a keto group being part of a condensed ring system having two rings the condensed ring system containing seven carbon atoms
    • C07C49/437—Camphor; Fenchone

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

p-Diketocamphane carboxylic acid and related acids are obtained when carbon dioxide is introduced into a solution of p-diketocamphane or bromo-p-diketocamphane in an organic solvent in the presence of metallic sodium, potassium or magnesium. The metal is present in at least one atomic proportion per molecular proportion of the starting material. The products, of which one appears to be p-(or 2 : 5)-diketocamphane-3 or 6-carboxylic acid, possess therapeutic properties. According to the example, dry carbon dioxide is passed into a solution of either starting material in xylene, toluene or benzene, to which the metal has been added. The solution is kept at a temperature of 100--140 DEG C., if desired under a pressure of 5--10 atmospheres. Cold water is added, followed by an inorganic acid, and the p - diketocamphane carboxylic acid then extracted therefrom with ether and crystallized from benzene. From the mother liquor, two further acids of the formula C11H16O4 are isolated by means of their quinine or cinchonine salts.
GB1233733A 1933-04-27 1933-04-27 A process for the manufacture of para (or 2.5) diketocamphane carboxylic acid and related acids Expired GB418385A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1233733A GB418385A (en) 1933-04-27 1933-04-27 A process for the manufacture of para (or 2.5) diketocamphane carboxylic acid and related acids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1233733A GB418385A (en) 1933-04-27 1933-04-27 A process for the manufacture of para (or 2.5) diketocamphane carboxylic acid and related acids

Publications (1)

Publication Number Publication Date
GB418385A true GB418385A (en) 1934-10-24

Family

ID=10002629

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1233733A Expired GB418385A (en) 1933-04-27 1933-04-27 A process for the manufacture of para (or 2.5) diketocamphane carboxylic acid and related acids

Country Status (1)

Country Link
GB (1) GB418385A (en)

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