GB1082954A - Steroid derivatives - Google Patents

Steroid derivatives

Info

Publication number
GB1082954A
GB1082954A GB4868866A GB4868866A GB1082954A GB 1082954 A GB1082954 A GB 1082954A GB 4868866 A GB4868866 A GB 4868866A GB 4868866 A GB4868866 A GB 4868866A GB 1082954 A GB1082954 A GB 1082954A
Authority
GB
United Kingdom
Prior art keywords
alkyl
halogenation
keto
carbon atoms
group
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
GB4868866A
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.)
TITO LIVIO VAGLIO
Original Assignee
TITO LIVIO VAGLIO
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 TITO LIVIO VAGLIO filed Critical TITO LIVIO VAGLIO
Publication of GB1082954A publication Critical patent/GB1082954A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J71/00—Steroids in which the cyclopenta(a)hydrophenanthrene skeleton is condensed with a heterocyclic ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J75/00—Processes for the preparation of steroids in general

Abstract

Novel 2 - alkyl - 2 - halogen - 1a , 11a - oxido-d 4 -3-keto steroids of the general Formula I <FORM:1082954/C2/1> wherein X is chlorine or bromine, R represents a lower alkyl group having 1-4 carbon atoms, R4 represents a hydrogen atom or a lower C1-C4 alkyl group and R1 represents a keto group (in which case no substituent R11 is present) or an hydroxyl group free or esterified with an aliphatic, cycloaliphatic, or arylaliphatic carboxylic acid having 1-12 carbon atoms, are obtained by subjecting to halogenation 2-alkyl-11a -hydroxy-1,4.3-keto steroids of the Formula II <FORM:1082954/C2/2> wherein R, R1 and R11 are as defined above, said halogenation being carried out in solution in organic solvents as ethers, chlorinated hydrocarbons, tertiary amides or organic bases or lower aliphatic carboxylic acids.
GB4868866A 1963-10-05 1964-10-02 Steroid derivatives Expired GB1082954A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2056863 1963-10-05

Publications (1)

Publication Number Publication Date
GB1082954A true GB1082954A (en) 1967-09-13

Family

ID=11168914

Family Applications (2)

Application Number Title Priority Date Filing Date
GB4868866A Expired GB1082954A (en) 1963-10-05 1964-10-02 Steroid derivatives
GB4013864A Expired GB1082953A (en) 1963-10-05 1964-10-02 Steroid derivatives

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB4013864A Expired GB1082953A (en) 1963-10-05 1964-10-02 Steroid derivatives

Country Status (2)

Country Link
CH (1) CH451927A (en)
GB (2) GB1082954A (en)

Also Published As

Publication number Publication date
GB1082953A (en) 1967-09-13
CH451927A (en) 1968-05-15

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