GB748470A - A process for the manufacture of iso-ergosterone - Google Patents

A process for the manufacture of iso-ergosterone

Info

Publication number
GB748470A
GB748470A GB2982853A GB2982853A GB748470A GB 748470 A GB748470 A GB 748470A GB 2982853 A GB2982853 A GB 2982853A GB 2982853 A GB2982853 A GB 2982853A GB 748470 A GB748470 A GB 748470A
Authority
GB
United Kingdom
Prior art keywords
ergosterone
enol
isoergosterone
absence
prepared
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
GB2982853A
Inventor
Joseph Green
Anthony Fenwick Daglish
Victor David Poole
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.)
Vitamins Ltd
Original Assignee
Vitamins Ltd
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 Vitamins Ltd filed Critical Vitamins Ltd
Priority to GB2982853A priority Critical patent/GB748470A/en
Publication of GB748470A publication Critical patent/GB748470A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J9/00—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of more than two carbon atoms, e.g. cholane, cholestane, coprostane
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J75/00—Processes for the preparation of steroids in general

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Isoergosterone is prepared by subjecting an ergosterone enol ester to hydrolysis or alcoholysis by sulphuric acid dissolved in an alkanol containing not more than four carbon atoms in the molecule, in the presence or absence of water. In examples: (1) ergosterone enol acetate in methanol is refluxed with aqueous sulphuric acid, when isoergosterone separates; (2) as in (1) using ethanol as solvent and in the absence of water; (3) ergosterone enol propionate is hydrolysed as in (1) to give isoergosterone. Ergosterone enol propionate is prepared by the reaction of propionic anhydride in pyridine on ergosterone.
GB2982853A 1953-10-28 1953-10-28 A process for the manufacture of iso-ergosterone Expired GB748470A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2982853A GB748470A (en) 1953-10-28 1953-10-28 A process for the manufacture of iso-ergosterone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2982853A GB748470A (en) 1953-10-28 1953-10-28 A process for the manufacture of iso-ergosterone

Publications (1)

Publication Number Publication Date
GB748470A true GB748470A (en) 1956-05-02

Family

ID=10297842

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2982853A Expired GB748470A (en) 1953-10-28 1953-10-28 A process for the manufacture of iso-ergosterone

Country Status (1)

Country Link
GB (1) GB748470A (en)

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