GB969558A - Process for the preparation of 17ª‡-methyl-í¸-androstadien-17ª‰-ol-3-one by chemicaldehydrogenation - Google Patents

Process for the preparation of 17ª‡-methyl-í¸-androstadien-17ª‰-ol-3-one by chemicaldehydrogenation

Info

Publication number
GB969558A
GB969558A GB1663762A GB1663762A GB969558A GB 969558 A GB969558 A GB 969558A GB 1663762 A GB1663762 A GB 1663762A GB 1663762 A GB1663762 A GB 1663762A GB 969558 A GB969558 A GB 969558A
Authority
GB
United Kingdom
Prior art keywords
methyl
chemicaldehydrogenation
androstadien
preparation
dehydrogenating
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
GB1663762A
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.)
Medica Oy AB
Original Assignee
Medica Oy AB
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 Medica Oy AB filed Critical Medica Oy AB
Publication of GB969558A publication Critical patent/GB969558A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Steroid Compounds (AREA)

Abstract

17a -Methyl -D 1,4- ondrostadien -17b - ol -3- one is prepared by dehydrogenating 17a -methyl -D 4- ondrosten -17b - ol -3- one with 2,3-dichloro-5, 6-dicyano-1, 4-benzoquinone in the presence of a catalyst consisting of a strong organic acid having a dissociation constant between 5x10-3 and 2x10-1, for example, 3,5-dinitrobenzoic, maleic, trichloroacetic and oxalic acids. The amount of catalyst used may be from 2 to 20% of the dehydrogenating agent. Specification 854,343 is referred to.
GB1663762A 1961-11-03 1962-05-01 Process for the preparation of 17ª‡-methyl-í¸-androstadien-17ª‰-ol-3-one by chemicaldehydrogenation Expired GB969558A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI192261 1961-11-03

Publications (1)

Publication Number Publication Date
GB969558A true GB969558A (en) 1964-09-09

Family

ID=8506421

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1663762A Expired GB969558A (en) 1961-11-03 1962-05-01 Process for the preparation of 17ª‡-methyl-í¸-androstadien-17ª‰-ol-3-one by chemicaldehydrogenation

Country Status (3)

Country Link
DE (1) DE1185184B (en)
DK (1) DK112870B (en)
GB (1) GB969558A (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1102144B (en) * 1958-03-04 1961-03-16 British Drug Houses Ltd Process for the preparation of 3-oxo -? - 6-methyl and 3-oxo -? - 6-methyl steroids
BE576678A (en) * 1958-03-13 1959-07-01 British Drug Houses Ltd Process for the preparation of steroids and products obtained.
DE1100622B (en) * 1958-03-13 1961-03-02 British Drug Houses Ltd Process for the production of 3-oxo -? - or 3-oxo -? - 6-desmethyl steroids
US2968662A (en) * 1959-03-04 1961-01-17 Syntex Sa 6-halo-6-dehydro derivatives of 11-oxygenated-9 alpha-haloprogesterones
US2963498A (en) * 1959-05-11 1960-12-06 Searle & Co Dehydro derivatives of 11-oxygenated 17alpha-(lower alkanoyl)-oxy-9alpha-halopregnane-3, 20-diones

Also Published As

Publication number Publication date
DE1185184B (en) 1965-01-14
DK112870B (en) 1969-01-27

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