GB623754A - Improvements in or relating to dehydro-iso-androsterone and process of producing the same - Google Patents

Improvements in or relating to dehydro-iso-androsterone and process of producing the same

Info

Publication number
GB623754A
GB623754A GB27825/46A GB2782546A GB623754A GB 623754 A GB623754 A GB 623754A GB 27825/46 A GB27825/46 A GB 27825/46A GB 2782546 A GB2782546 A GB 2782546A GB 623754 A GB623754 A GB 623754A
Authority
GB
United Kingdom
Prior art keywords
androsterone
dehydro
iso
relating
producing
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
GB27825/46A
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.)
Akzo Nobel Paints LLC
Original Assignee
Glidden Co
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 Glidden Co filed Critical Glidden Co
Publication of GB623754A publication Critical patent/GB623754A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J1/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, not substituted in position 17 beta by a carbon atom, e.g. estrane, androstane
    • 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)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

A slurry of sitosteryl acetate dibromide in glacial acetic (from 5 to 10 parts of glacial acetic acid by weight of sitosteryl acetate dibromide) is treated with chromic acid and sulphuric acid under substantially anhydrous conditions while maintaining the temperature below 20 DEG C., thereby degrading the side chain. Chromium sulphate crystallises out and may be removed, thus enabling dibromination to be effected by a small quantity of zinc dust. A detailed example is given.
GB27825/46A 1946-05-08 1946-09-17 Improvements in or relating to dehydro-iso-androsterone and process of producing the same Expired GB623754A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US623754XA 1946-05-08 1946-05-08

Publications (1)

Publication Number Publication Date
GB623754A true GB623754A (en) 1949-05-23

Family

ID=22042067

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27825/46A Expired GB623754A (en) 1946-05-08 1946-09-17 Improvements in or relating to dehydro-iso-androsterone and process of producing the same

Country Status (1)

Country Link
GB (1) GB623754A (en)

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