GB1527699A - Process for producing 17-acetals of 3-alkoxyestra-2,5(10)-dien-17-ones - Google Patents

Process for producing 17-acetals of 3-alkoxyestra-2,5(10)-dien-17-ones

Info

Publication number
GB1527699A
GB1527699A GB1539677A GB1539677A GB1527699A GB 1527699 A GB1527699 A GB 1527699A GB 1539677 A GB1539677 A GB 1539677A GB 1539677 A GB1539677 A GB 1539677A GB 1527699 A GB1527699 A GB 1527699A
Authority
GB
United Kingdom
Prior art keywords
liquid ammonia
dien
acetals
ones
april
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
GB1539677A
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.)
Mitsubishi Kasei Corp
Original Assignee
Mitsubishi Kasei Corp
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
Priority claimed from JP4429576A external-priority patent/JPS52128362A/en
Priority claimed from JP14683576A external-priority patent/JPS5371053A/en
Application filed by Mitsubishi Kasei Corp filed Critical Mitsubishi Kasei Corp
Publication of GB1527699A publication Critical patent/GB1527699A/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
    • C07J1/0051—Estrane derivatives
    • C07J1/0081—Substituted in position 17 alfa and 17 beta
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J21/00—Normal steroids containing carbon, hydrogen, halogen or oxygen having an oxygen-containing hetero ring spiro-condensed with the cyclopenta(a)hydrophenanthrene skeleton
    • C07J21/005—Ketals
    • C07J21/008—Ketals at position 17

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Steroid Compounds (AREA)

Abstract

1527699 Production of 17-acetals of 3-alkoxyester - 2,5(10) - dien - 17 - ones MITSUBISHI CHEMICAL INDUSTRIES Ltd 13 April 1977 [19 April 1976 7 Dec 1976] 15396/77 Heading C2U Steroids of the formula (wherein R 1 and R 2 are each C 1-10 alkyl or R 1 and R 2 together are C 2-10 alkylene, and R 3 is C 1-10 alkyl) are prepared by reacting steroids of the formula with sodium or potassium, liquid ammonia and a tertiary alcohol in the presence of tetrahydrofuran, dioxan or tetrahydropyran as solvent, these materials being used in such proportions that the starting steroid is substantially dissolved in the reaction system and that 2 liquid phases are formed, the upper consisting mainly of Na or K and liquid ammonia and the lower consisting mainly of solvent, liquid ammonia and starting steroid and being coloured by the presence of alkali metal. The reaction is preferably effected in the presence of an aliphatic and/or alicyclic hydrocarbon, e.g. of 5 to 8 carbon atoms. Examples are given, and comparative examples, in which the specified conditions are not necessarily adhered to, are also provided.
GB1539677A 1976-04-19 1977-04-13 Process for producing 17-acetals of 3-alkoxyestra-2,5(10)-dien-17-ones Expired GB1527699A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4429576A JPS52128362A (en) 1976-04-19 1976-04-19 Preparation of 17-acetal of 3-alkoxyestra-2,5(10)-diene-17-one
JP14683576A JPS5371053A (en) 1976-12-07 1976-12-07 Preparation of 17-acetal of 3-alkoxyestra-2,5(10)-diene-17-one

Publications (1)

Publication Number Publication Date
GB1527699A true GB1527699A (en) 1978-10-04

Family

ID=26384146

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1539677A Expired GB1527699A (en) 1976-04-19 1977-04-13 Process for producing 17-acetals of 3-alkoxyestra-2,5(10)-dien-17-ones

Country Status (5)

Country Link
DD (1) DD132347A5 (en)
DE (1) DE2717310A1 (en)
FR (1) FR2348931A1 (en)
GB (1) GB1527699A (en)
NL (1) NL7704220A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59141600A (en) * 1983-02-02 1984-08-14 Mitsubishi Chem Ind Ltd Preparation of estrone

Also Published As

Publication number Publication date
NL7704220A (en) 1977-10-21
FR2348931A1 (en) 1977-11-18
FR2348931B1 (en) 1980-06-06
DE2717310A1 (en) 1977-11-03
DD132347A5 (en) 1978-09-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee